WO2006071662A2 - Method and apparatus for protecting culinary products - Google Patents

Method and apparatus for protecting culinary products Download PDF

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Publication number
WO2006071662A2
WO2006071662A2 PCT/US2005/046292 US2005046292W WO2006071662A2 WO 2006071662 A2 WO2006071662 A2 WO 2006071662A2 US 2005046292 W US2005046292 W US 2005046292W WO 2006071662 A2 WO2006071662 A2 WO 2006071662A2
Authority
WO
WIPO (PCT)
Prior art keywords
security tag
tag
security
food products
microwave
Prior art date
Application number
PCT/US2005/046292
Other languages
French (fr)
Other versions
WO2006071662A3 (en
Inventor
Lawrence Appalucci
Anthony Piccoli
Seth Strauser
George West
Original Assignee
Checkpoint Systems, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Checkpoint Systems, Inc. filed Critical Checkpoint Systems, Inc.
Priority to AU2005322200A priority Critical patent/AU2005322200B2/en
Priority to DE602005013696T priority patent/DE602005013696D1/en
Priority to EP05854930A priority patent/EP1829005B1/en
Priority to CA2592443A priority patent/CA2592443C/en
Priority to MX2007007833A priority patent/MX2007007833A/en
Priority to JP2007548415A priority patent/JP4769821B2/en
Publication of WO2006071662A2 publication Critical patent/WO2006071662A2/en
Publication of WO2006071662A3 publication Critical patent/WO2006071662A3/en

Links

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00Burglar, theft or intruder alarms
    • G08B13/22Electrical actuation
    • G08B13/24Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2405Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used
    • G08B13/2414Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used using inductive tags
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/34Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B65D81/3446Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated by microwaves
    • B65D81/3453Rigid containers, e.g. trays, bottles, boxes, cups
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00Burglar, theft or intruder alarms
    • G08B13/22Electrical actuation
    • G08B13/24Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2428Tag details
    • G08B13/2437Tag layered structure, processes for making layered tags
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00Burglar, theft or intruder alarms
    • G08B13/22Electrical actuation
    • G08B13/24Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2428Tag details
    • G08B13/2437Tag layered structure, processes for making layered tags
    • G08B13/2445Tag integrated into item to be protected, e.g. source tagging
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2211/00Anti-theft means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2581/00Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D2581/34Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3437Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within specially adapted to be heated by microwaves
    • B65D2581/3486Dielectric characteristics of microwave reactive packaging

Definitions

  • the current invention discloses a security tag for use with food items that are sold. This invention is specifically designed for foods such as meats, fish, and delicatessens. However, it is envisioned this security tag can be used with any food product.
  • Food products sold by stores also now include such security tags and many of these food products are microwavable.
  • a warning is typically provided that instructs the customer to discard the packaging before microwaving the food product.
  • the security tag is located somewhere other than the outside packaging (e.g., in the tray of a meat product)
  • a security element that is microwave-resistant wherein the security element comprises: a first conductive trace (e.g., aluminum, copper, etc.) forming a single open loop; a second conductive trace (e.g., aluminum, copper, etc.) forming a single open loop; a dielectric layer (e.g., a polymer) forming a single open loop and positioned between the first and second conductive traces; wherein the first and second conductive traces are electrically-coupled at a location that penetrates the dielectric layer; and wherein the first conductive layer, the second conductive layer and the dielectric layer are encapsulated within plastic layers (e.g., polypropylene).
  • a first conductive trace e.g., aluminum, copper, etc.
  • a second conductive trace e.g., aluminum, copper, etc.
  • a dielectric layer e.g., a polymer
  • a method for providing a security tag associated with meat or fish product packaging having a soaker pad therein comprises the steps of: providing a security tag that is encapsulated to be waterproof and wherein the security tag includes a pair of single open loop conductive traces that are separated from each other by a dielectric layer and wherein the first and second conductive layers are electrically coupled at a location through the dielectric layer; and disposing the security tag within the soaker pad.
  • a method for providing a security tag associated with meat or fish product packaging having a label thereon comprises the steps of: providing a security tag that is encapsulated (e.g., sealed within plastic layers) to be waterproof and wherein the security tag includes a pair of single open loop conductive traces (e.g., aluminum, copper, etc.) that are separated from each other by a dielectric layer (e.g., a polymer) and wherein the first and second conductive layers are electrically coupled at a location through the dielectric layer; applying an adhesive to one side of the security tag; and securing the security tag on the label.
  • a security tag that is encapsulated (e.g., sealed within plastic layers) to be waterproof and wherein the security tag includes a pair of single open loop conductive traces (e.g., aluminum, copper, etc.) that are separated from each other by a dielectric layer (e.g., a polymer) and wherein the first and second conductive layers are electrically coupled at a location through the dielectric layer
  • a method for testing a security tag to determine if it is microwave-resistant comprising the steps of: (a) providing sample food products (e.g., meat products such as beef, chicken, pork, or fish, etc.) that are packaged in a conventional manner and includes associating the security tag under test with each of the sample food products packages; (b) subjecting the sample food products to cold temperatures (e.g., freezing, partially frozen, refrigeration, etc.) for a predetermined period of time (e.g., 24-48 hours);
  • sample food products e.g., meat products such as beef, chicken, pork, or fish, etc.
  • cold temperatures e.g., freezing, partially frozen, refrigeration, etc.
  • a predetermined period of time e.g., 24-48 hours
  • each microwave oven activating each of the microwave ovens on high power for three minutes and wherein each microwave has a respective microwave configuration (e.g., 800 watts/0.8 ft 3 , 1000 watts/1.2 ft 3 and 1200 watts/1.6 ft 3 );
  • step (e) observing the sample food products being heated in the microwave ovens to see if any sparking or arcing occurs during heating; (f) repeating steps (d) and (e) for a predetermined number of times (e.g., eighty); and (g) determining that said security tag is microwave resistant if no sparking or arcing occurs after completing step (f).
  • a predetermined number of times e.g. eighty
  • Fig. 1 is an enlarged, partial plan view of the culinary tag of the present invention with the upper adhesive layer omitted;
  • Fig. 2 A is an exploded view of the tag of Fig. 1;
  • Fig. 2B is a cross section view of the tag of Fig. 1 taken along line 2B-2B;
  • Fig. 3 is a cross-sectional view of the culinary tag of the present invention inserted within a soaker pad of a food (e.g., meat) package;
  • a food e.g., meat
  • Fig. 4 is an enlarged front view of a prior art Series 410 tag
  • Fig. 5 is an enlarged rear view of the Series 410 tag of Fig. 4;
  • Fig. 6 is a side view of a food package showing the culinary tag positioned inside the soaker pad of a meat package;
  • Fig. 7 is a side view of a food package showing the culinary tag positioned in an alternative location such as on the wrap of the food package;
  • the tag 20 of the present invention enhances microwave safety. Since the current tag 20 is envisioned to be used in the culinary art, it is necessary that the tag be resistant to microwave energy. As mentioned earlier, it is envisioned that customers may accidentally place this tag in their microwave ovens which may create a safety hazard. In particular, as is known, microwave ovens emit microwave energy which will induce an electric current through a circuit within the microwave field. In the case of a security tag, the current will be induced along the antenna trace. When the voltage becomes great enough the electric current can arc across the antenna traces creating sparks, heat, and possibly fires. The tag 20 of the present invention addresses this problem to create a microwave safe tag that can function after being exposed to microwave energy.
  • the tag In addition to generating a microwave safe tag, the tag has several unique uses.
  • the tag of the current invention can be created with plastics of varying rigidity and melting temperatures. Different plastics have varying advantages in terms of safety, flexibility, and cost. Polypropylene is the preferred material for the tag.
  • the tag 20 of the present invention is designed to work with foods of all types. A major reason RF tags have not become commonplace in the food retail industry is many tags contain toxic chemicals.
  • the tag 20 of the present invention is devoid of any such materials.
  • One preferred use of this tag is in the meat packing industry.
  • the tag 20 can potentially be packaged with the meat by placing onto the foam meat tray. Additionally, the tag 20 may be attached to a plastic wrap of the food product, e.g., the wrap that surrounds and protects the meat and tray.
  • this tag 20 can be used with any food product whether or not the food can be microwaved. Non-limiting examples of some of these uses are in cereal, candy, dairy, products, chips, and noodles.
  • the tag 20 is non-toxic, even when heated. Moreover, the tag 20 uses plastic materials which do not emit noxious fumes when heated, do not form noxious liquids when melted, and do not contaminate foods in any manner.
  • the materials used to construct the tag are F.D. A. approved materials for use with food products. In the event the tag is heated in a conventional oven, the tag will melt slightly and become inactive, but will not damage the food.
  • the tag 20 of the current invention also has a polymeric layer sandwiching an RF circuit.
  • the tag of the current invention is water-resistant or waterproof.
  • the tag 20 comprises a first coil layer 22 comprising a single open loop and a second coil layer 24 also comprising a single open loop that are separated by a dielectric layer (e.g., any polymer) 26 that matches the shape of the first and second coil layers 22/24.
  • a dielectric layer e.g., any polymer
  • the term "single open loop" means that the trace forms only one loop (e.g., there are no concentric inner or outer coil loops as there are in Fig. 4); and whereby the trace has endpoints that are not connected; these coil layers may comprise any conductive material, preferably aluminum, copper, etc.
  • First 28 and second 30 adhesive layers are then applied to the respective coil layers 22/24.
  • the first and second coil layers 22/24 are electrically- coupled at contact points 22A and 24A by a crimping action that pierces the dielectric layer at region 26A.
  • large capacitor plates 4OA and 4OB are used; region 26B of the dielectric layer 26 forms the dielectric between these capacitor plates 40A/40B. It should be understood that the majority of the capacitance is distributed capacitance that is provided by the combination of the single open loop conductive traces 22/24 sandwiching the dielectric layer 26; the large capacitor plates 40A/40B provide a tuning provision for the tag 20.
  • each coil layer trace 22/24 comprises three elbows (42-46) and is connected to a respective capacitor plate 4OB and 4OA, respectively.
  • An elbow 42, 44 and 46 is defined as a change in direction of the trace of at least 60 degrees.
  • the elbows 42-46 typically have a radius of curvature of .15 in.
  • Each of the capacitor plates 4OA and 4OB form a fourth elbow of the respective coil layer trace (22/24), thereby giving the traces 22/24 a square appearance.
  • the pair of traces 22/24 are separated by a dielectric layer 26.
  • plastic membrane or layers 32/34 encapsulate the tag 20.
  • Polypropylene is one preferred material for the tag 20 of the present invention because it is a FDA-approved material suitable to be used in conjunction with microwavable foods. Another advantage of polypropylene is that it is flexible and can be used in lamination devices easily. Depending on the attributes needed, various plastics could be substituted for polypropylene. Some uses of this tag 20 may require a more flexible or rigid plastic, or one providing more waterproofing capabilities.
  • the tag 20 of the present invention was originally designed for use with the meat packing industry. Meat is an expensive product in retail stores and has widely not been successfully protected by RF technology. The delicate RF circuitry does not work if it is exposed to blood or water. Additionally, most conventional tags cannot produce a strong enough signal when covered with the meat product.
  • the plastic casing (e.g., layers 32/34) of the tag 20 provides a novel solution to this problem and allows the tag 20 to be hidden in the soaker pad (also known as "towelette") found under most meat products. It is contemplated that this tag 20 could be placed adjacent the towelette. Additionally, meat products without towelettes can be protected.
  • the general method for packaging the meat product is therefore encapsulating a tray, the tag, the towlette, and the meat with a plastic wrap. The most preferred embodiment is having the wrap sealing the meat in the tray, with a tag on the top of the wrap.
  • Fig. 3 depicts the tag 20 positioned in between a soaker pad 10 that is formed by an upper portion 1 OA and a lower portion 1 OB.
  • Each soaker pad portion comprises an absorbent paper layer 11 in contact with the polypropylene layers 32 and 34.
  • the absorbent paper layer 11 is then covered by a perforated polypropylene layer 12.
  • Fig. 6 provides an overall view of a packaged meat product showing the position of a soaker pad 10 including the tag 20 of the present invention disposed therein.
  • the soaker pad 10 is positioned inside a tray (e.g., polystyrene) or holder 13.
  • the meat product 14 is then placed on top of the soaker pad 10.
  • a transparent cover (e.g., cellophane or shrink wrap, etc.) 15 is then secured over the meat product 14 and sealed to the tray 13.
  • the tag 20 may comprise a part of the label that specifies the product details for the customer; the label is typically bonded (e.g., adhesively-secured) to the transparent cover 15.
  • the tag 20 may be adhesively secured to the label (or alternatively, may be formed as a part of the label, etc.), as shown in Fig. 7.
  • the tag of present invention can be used to protect other products that are currently very difficult to protect because of moisture, health concerns, or microwave safety.
  • An embodiment of this tag can be created with a waterproof seal that allows that tag to remain submerged in a liquid, such as wine or milk. This would provide a tag that cannot be removed, while providing all the benefits of RF protection, and without damaging the product.
  • tags of this invention can be used in dairy products, cereal, frozen foods, bread, and pastas. While these foods can be protected by using conventional RF technology, limitations of those tags prevented the tags from being placed in direct contact with the food because of signal strength problems, health problems, or microwave safety.
  • the tags of the current invention fulfill the long-felt need to solve these problems, and can effectively protect consumable items in a way not previously possible.
  • the preferred dimensions of the tag 20 are selected to give maximum output of the tag 20 while solving the four problems surrounding the RF food protection industry. These problems are microwave safety, waterproof capability, protection of the food from tag contamination, creation of a tag that can minimize the effects of RF interference caused by the food.
  • the following dimensions are disclosed by way of example only, and in some cases the dimensions could be modified in order to satisfy particular food product needs but without deviating from the scope of the invention.
  • the dimensions of the tag 20 are approximately 1.72 inches by 1.72 inches.
  • the width (also referred to as "line width") of the first coil layer 22 is approximately 0.20 inches; the line width of the second coil layer 24 is approximately 0.26 inches.
  • the conductive trace (i.e., coil layer) width should be at least 1/10 of the length of the tag 20.
  • the capacitor area is 0.2191 square inches.
  • the thickness of layer 24 is approximately 50 microns and the thickness of the layer 22 is approximately 38 microns.
  • the thickness of the dielectric layer 26 is approximately 2.5 microns.
  • the frequency the tag 20 returns the resonant signal is 8.2 MHz.
  • the Q of the tag ("quality factor," which is a measure of frequency selectivity or sharpness of the peak of a resonant circuit) is approximately 88-90.
  • the assignee of this application namely, Checkpoint Systems, Inc., of Thorofare, NJ, has established a "gold standard'Or reference which one can compare the performance of the tag 20 of the present invention.
  • the gold standard is the measure of a transceiver's measured signal strength of a Series 410 tag, sold by Checkpoint Systems, Inc. (see Table 1, as well as Figs. 3-4) versus the tag 20 of the present invention.
  • an RF tag returns a certain EM-field when it is energized by a transmitter.
  • the strength of a magnetic field is measured in Gauss or Teslas.
  • the magnetic field generated by the tag induces a current across an inductor which resides in the antenna of the receiver.
  • the induced current is run across a load which creates a voltage difference across the load. This voltage should be approximately 1 GST (gold standard tag) for a series 410 tag.
  • the tag of the current invention generates a signal 1.7 times more powerful than the Series 410 tag.
  • the tag 20 of the current invention has a power of 1.7 GST because the transceiver measures a 1.7 voltage difference for this tag and 1.0 GST for a series 410 tag.
  • Width of margins .1 in.
  • one of the key features of the tag 20 of the present invention is that enhances microwave safety.
  • a tag is placed inadvertently inside of a microwave oven (e.g., the user forgets to remove the food packaging which contains the security tag)
  • the tag will be energized by the applied microwaves.
  • Energy is stored in the tag's capacitor and throughout the traces (the antenna.) Because the traces have a resistance (though minor) there is a voltage difference between one trace and another. If the tag receives a large amount of energy, as it would if it were microwaved, the small distance between the traces and large voltage difference may cause electric arcing to occur. This can lead to fires if the electrical arc comes near or into contact with a flammable substance.
  • the tag 20 of the present invention is designed to have only one trace.
  • a very thick trace 50 (Fig. 1) is used.
  • the elbows 42-46 of the layers 22/24 are rounded rather than pointed.
  • Microwave energy is characterized as "high intensity” which is defined as energy greater than 1100 watts, and prolonged exposure greater than four minutes (limited exposure is a time of less than three minutes).
  • high intensity is defined as energy greater than 1100 watts, and prolonged exposure greater than four minutes (limited exposure is a time of less than three minutes).
  • limited exposure is a time of less than three minutes.
  • the Assignee of the present invention engaged a testing and certification company, namely, TUV Rheinland of North America of Youngs ville, North Carolina, a certification company, to prepare a novel test of the tag 20 of the present invention. It is believed that before then, there was no standard test for the microwave safety of a security tag.
  • the microwave test involves using different styles of meat that are cut into 0.5 Ib (beef) and 1 Ib (pork & chicken); the poundage being determined by the amount of moisture content within that particular meat.
  • the tag 20 of the present invention is placed on the outside or inside the soaker pad of each meat package and then they are packaged using Styrofoam meat trays and shrink-wrap. The packages are then placed in a freezer for a 24 - 48 hour period. Every cut and style of meat has a minimum of 3 duplicates (one for each type of microwave).
  • the meat product including the tag 20 on the label is then placed in (three packages, same weight, cut & style) and is placed into three different microwaves (see microwave types & power levels below) for 3 minutes on high power (i.e., the maximum power level of the microwave oven).
  • the test is considered a success, if after 3 full minutes at high power in the microwave the tag 20 of the present invention has not arced or sparked. This test is performed roughly 80 times per microwave type (3 types see below) or 240 total tests.
  • Microwave Oven Wattage /cu ft - all testing must be performed using each of the following microwave specifications (or configuration):

Abstract

A microwave-resistant and waterproof security tag for use with food products, especially meat products. The security tag includes a pair of single, open loop conductive traces in between which is disposed a similarly-shaped dielectric layer. This combination is encapsulated within plastic membranes or covers that are sealed at their common edges. The preferred embodiment includes rectangularly-shaped single, open loop conductive traces with rounded corners and with one end of each trace forming a capacitor plate. The width of each trace is at least 1/10 of the length of the security tag.

Description

METHOD AND APPARATUS FOR PROTECTING CULINARY PRODUCTS
SPECIFICATION BACKGROUND OF THE INVENTION
1. FIELD OF INVENTION
The current invention discloses a security tag for use with food items that are sold. This invention is specifically designed for foods such as meats, fish, and delicatessens. However, it is envisioned this security tag can be used with any food product.
2. DESCRIPTION OF RELATED ART
Examples of security tags for products are shown in U.S. Patent Nos. 5,142,270 (Appalucci, et al.); 5,182,544 (Aquilera, et al.); 5,754,110 (Appalucci, et al.); 5,841,350 (Appalucci, et al.); 5,861,809 (Eckstein, et al.) and 6,400,271 (Davies, Jr., et al.). In particular, another patent owned by Checkpoint System, Inc. of Thorofare, NJ is U.S. Patent No. 5,241,299 (Appalucci, et al.), which is incorporated by reference herein, and which discloses an RF (Radio Frequency) tag that has a polymeric layer sandwiching an RF circuit. This tag's coating provides both protection to the circuitry from water and shock. As can be appreciated by those skilled in the art, the purpose of the security tag is to activate security alarms in the store should a customer attempt to leave the store without purchasing the product. If the item is purchased, the security tag is deactivated (usually at the point of sale) to prevent setting off the alarms when the customer leaves the store; thus, the functional life of the security tag is completed.
Food products sold by stores also now include such security tags and many of these food products are microwavable. To prevent the customer from microwaving the deactivated security tag, a warning is typically provided that instructs the customer to discard the packaging before microwaving the food product. However, where the customer forgets or ignores the warning, or where the security tag is located somewhere other than the outside packaging (e.g., in the tray of a meat product), it is desirable to provide a security tag that enhances microwave safety.
With particular respect to meat products, recent occurrences of mad cow disease now make the tracking of meat products even more important. Thus, there is a need for providing RFID tags that can properly operate with regard to meat packaging.
All references cited herein are incorporated herein by reference in their entireties. BRIEF SUMMARY OF THE INVENTION
A security element that is microwave-resistant wherein the security element comprises: a first conductive trace (e.g., aluminum, copper, etc.) forming a single open loop; a second conductive trace (e.g., aluminum, copper, etc.) forming a single open loop; a dielectric layer (e.g., a polymer) forming a single open loop and positioned between the first and second conductive traces; wherein the first and second conductive traces are electrically-coupled at a location that penetrates the dielectric layer; and wherein the first conductive layer, the second conductive layer and the dielectric layer are encapsulated within plastic layers (e.g., polypropylene).
A method for providing a security tag associated with meat or fish product packaging having a soaker pad therein. The method comprises the steps of: providing a security tag that is encapsulated to be waterproof and wherein the security tag includes a pair of single open loop conductive traces that are separated from each other by a dielectric layer and wherein the first and second conductive layers are electrically coupled at a location through the dielectric layer; and disposing the security tag within the soaker pad.
A method for providing a security tag associated with meat or fish product packaging having a label thereon. The method comprises the steps of: providing a security tag that is encapsulated (e.g., sealed within plastic layers) to be waterproof and wherein the security tag includes a pair of single open loop conductive traces (e.g., aluminum, copper, etc.) that are separated from each other by a dielectric layer (e.g., a polymer) and wherein the first and second conductive layers are electrically coupled at a location through the dielectric layer; applying an adhesive to one side of the security tag; and securing the security tag on the label.
A method for testing a security tag to determine if it is microwave-resistant. The method comprising the steps of: (a) providing sample food products (e.g., meat products such as beef, chicken, pork, or fish, etc.) that are packaged in a conventional manner and includes associating the security tag under test with each of the sample food products packages; (b) subjecting the sample food products to cold temperatures (e.g., freezing, partially frozen, refrigeration, etc.) for a predetermined period of time (e.g., 24-48 hours);
(c) placing each of the sample food product packages along with their respective security tags under test into respective microwave ovens; (d) activating each of the microwave ovens on high power for three minutes and wherein each microwave has a respective microwave configuration (e.g., 800 watts/0.8 ft3 , 1000 watts/1.2 ft3 and 1200 watts/1.6 ft3);
(e) observing the sample food products being heated in the microwave ovens to see if any sparking or arcing occurs during heating; (f) repeating steps (d) and (e) for a predetermined number of times (e.g., eighty); and (g) determining that said security tag is microwave resistant if no sparking or arcing occurs after completing step (f).
BRIEF DESCRIPTION OF SEVERAL VIEWS OF THE DRAWINGS
The invention will be described in conjunction with the following drawings in which like reference numerals designate like elements and wherein:
Fig. 1 is an enlarged, partial plan view of the culinary tag of the present invention with the upper adhesive layer omitted;
Fig. 2 A is an exploded view of the tag of Fig. 1;
Fig. 2B is a cross section view of the tag of Fig. 1 taken along line 2B-2B;
Fig. 3 is a cross-sectional view of the culinary tag of the present invention inserted within a soaker pad of a food (e.g., meat) package;
Fig. 4 is an enlarged front view of a prior art Series 410 tag;
Fig. 5 is an enlarged rear view of the Series 410 tag of Fig. 4;
Fig. 6 is a side view of a food package showing the culinary tag positioned inside the soaker pad of a meat package; and
Fig. 7 is a side view of a food package showing the culinary tag positioned in an alternative location such as on the wrap of the food package;
DETAILED DESCRIPTION OF THE INVENTION
One of the key features of the tag 20 of the present invention is that it enhances microwave safety. Since the current tag 20 is envisioned to be used in the culinary art, it is necessary that the tag be resistant to microwave energy. As mentioned earlier, it is envisioned that customers may accidentally place this tag in their microwave ovens which may create a safety hazard. In particular, as is known, microwave ovens emit microwave energy which will induce an electric current through a circuit within the microwave field. In the case of a security tag, the current will be induced along the antenna trace. When the voltage becomes great enough the electric current can arc across the antenna traces creating sparks, heat, and possibly fires. The tag 20 of the present invention addresses this problem to create a microwave safe tag that can function after being exposed to microwave energy.
In addition to generating a microwave safe tag, the tag has several unique uses. The tag of the current invention can be created with plastics of varying rigidity and melting temperatures. Different plastics have varying advantages in terms of safety, flexibility, and cost. Polypropylene is the preferred material for the tag.
The tag 20 of the present invention is designed to work with foods of all types. A major reason RF tags have not become commonplace in the food retail industry is many tags contain toxic chemicals. The tag 20 of the present invention is devoid of any such materials. One preferred use of this tag is in the meat packing industry. The tag 20 can potentially be packaged with the meat by placing onto the foam meat tray. Additionally, the tag 20 may be attached to a plastic wrap of the food product, e.g., the wrap that surrounds and protects the meat and tray. In addition to the meat packing industry, this tag 20 can be used with any food product whether or not the food can be microwaved. Non-limiting examples of some of these uses are in cereal, candy, dairy, products, chips, and noodles.
The tag 20 is non-toxic, even when heated. Moreover, the tag 20 uses plastic materials which do not emit noxious fumes when heated, do not form noxious liquids when melted, and do not contaminate foods in any manner. The materials used to construct the tag are F.D. A. approved materials for use with food products. In the event the tag is heated in a conventional oven, the tag will melt slightly and become inactive, but will not damage the food.
As will be discussed in detail later, the tag 20 of the current invention also has a polymeric layer sandwiching an RF circuit. Finally, depending on the plastic chosen the tag of the current invention is water-resistant or waterproof.
As shown most clearly in Fig. 2A, the tag 20 comprises a first coil layer 22 comprising a single open loop and a second coil layer 24 also comprising a single open loop that are separated by a dielectric layer (e.g., any polymer) 26 that matches the shape of the first and second coil layers 22/24. The term "single open loop" means that the trace forms only one loop (e.g., there are no concentric inner or outer coil loops as there are in Fig. 4); and whereby the trace has endpoints that are not connected; these coil layers may comprise any conductive material, preferably aluminum, copper, etc. First 28 and second 30 adhesive layers are then applied to the respective coil layers 22/24. Polypropylene layers 32 and 34 are secured around the tag 20 by the adhesive layers 28/30. Finally, a third adhesive layer 36 is provided so that the tag 20 can be secured to a portion of the wrapping/packaging of the food product. The first and second coil layers 22/24 are electrically- coupled at contact points 22A and 24A by a crimping action that pierces the dielectric layer at region 26A. To make up for the lower inductance value of the coil layers 22/24 since they each only comprise a single open loop, large capacitor plates 4OA and 4OB are used; region 26B of the dielectric layer 26 forms the dielectric between these capacitor plates 40A/40B. It should be understood that the majority of the capacitance is distributed capacitance that is provided by the combination of the single open loop conductive traces 22/24 sandwiching the dielectric layer 26; the large capacitor plates 40A/40B provide a tuning provision for the tag 20.
As shown most clearly in Fig. 1 , each coil layer trace 22/24 comprises three elbows (42-46) and is connected to a respective capacitor plate 4OB and 4OA, respectively. An elbow 42, 44 and 46 is defined as a change in direction of the trace of at least 60 degrees. By way of example only, the elbows 42-46 typically have a radius of curvature of .15 in. Each of the capacitor plates 4OA and 4OB form a fourth elbow of the respective coil layer trace (22/24), thereby giving the traces 22/24 a square appearance. As mentioned earlier, the pair of traces 22/24 are separated by a dielectric layer 26. As mentioned earlier plastic membrane or layers 32/34 encapsulate the tag 20. Multiple methods can be used to form these layers 32/34 onto the tag 20 including using adhesives 28/30 to bond two plastic pieces 34/36 together to surround the tag 20, melting two pieces of plastic together to surround the tag 20, and molding the plastic around the tag 20. In the first two methods, a seal is formed around the edges of the plastic to prevent water from entering the circuit. This can be seen most clearly in Fig. 2B where the plastic layers 34/36 comprise an overlap that are sealed together.
Many plastics can melt or produce noxious fumes when microwaved. Polypropylene is one preferred material for the tag 20 of the present invention because it is a FDA-approved material suitable to be used in conjunction with microwavable foods. Another advantage of polypropylene is that it is flexible and can be used in lamination devices easily. Depending on the attributes needed, various plastics could be substituted for polypropylene. Some uses of this tag 20 may require a more flexible or rigid plastic, or one providing more waterproofing capabilities.
It should be noted that although a somewhat rectangular configuration for the coil layers 22/24 are used, it is within the broadest scope of the present invention to include any shape of a single trace.
The tag 20 of the present invention was originally designed for use with the meat packing industry. Meat is an expensive product in retail stores and has widely not been successfully protected by RF technology. The delicate RF circuitry does not work if it is exposed to blood or water. Additionally, most conventional tags cannot produce a strong enough signal when covered with the meat product. The plastic casing (e.g., layers 32/34) of the tag 20 provides a novel solution to this problem and allows the tag 20 to be hidden in the soaker pad (also known as "towelette") found under most meat products. It is contemplated that this tag 20 could be placed adjacent the towelette. Additionally, meat products without towelettes can be protected. The general method for packaging the meat product is therefore encapsulating a tray, the tag, the towlette, and the meat with a plastic wrap. The most preferred embodiment is having the wrap sealing the meat in the tray, with a tag on the top of the wrap.
In particular, Fig. 3 depicts the tag 20 positioned in between a soaker pad 10 that is formed by an upper portion 1 OA and a lower portion 1 OB. Each soaker pad portion comprises an absorbent paper layer 11 in contact with the polypropylene layers 32 and 34. The absorbent paper layer 11 is then covered by a perforated polypropylene layer 12. Fig. 6 provides an overall view of a packaged meat product showing the position of a soaker pad 10 including the tag 20 of the present invention disposed therein. In particular, the soaker pad 10 is positioned inside a tray (e.g., polystyrene) or holder 13. The meat product 14 is then placed on top of the soaker pad 10. A transparent cover (e.g., cellophane or shrink wrap, etc.) 15 is then secured over the meat product 14 and sealed to the tray 13. Alternatively, the tag 20 may comprise a part of the label that specifies the product details for the customer; the label is typically bonded (e.g., adhesively-secured) to the transparent cover 15. In particular, the tag 20 may be adhesively secured to the label (or alternatively, may be formed as a part of the label, etc.), as shown in Fig. 7.
The tag of present invention can be used to protect other products that are currently very difficult to protect because of moisture, health concerns, or microwave safety. An embodiment of this tag can be created with a waterproof seal that allows that tag to remain submerged in a liquid, such as wine or milk. This would provide a tag that cannot be removed, while providing all the benefits of RF protection, and without damaging the product.
It is additionally contemplated that tags of this invention can be used in dairy products, cereal, frozen foods, bread, and pastas. While these foods can be protected by using conventional RF technology, limitations of those tags prevented the tags from being placed in direct contact with the food because of signal strength problems, health problems, or microwave safety. The tags of the current invention fulfill the long-felt need to solve these problems, and can effectively protect consumable items in a way not previously possible.
The preferred dimensions of the tag 20 are selected to give maximum output of the tag 20 while solving the four problems surrounding the RF food protection industry. These problems are microwave safety, waterproof capability, protection of the food from tag contamination, creation of a tag that can minimize the effects of RF interference caused by the food. The following dimensions are disclosed by way of example only, and in some cases the dimensions could be modified in order to satisfy particular food product needs but without deviating from the scope of the invention. The dimensions of the tag 20 are approximately 1.72 inches by 1.72 inches. The width (also referred to as "line width") of the first coil layer 22 is approximately 0.20 inches; the line width of the second coil layer 24 is approximately 0.26 inches. The conductive trace (i.e., coil layer) width should be at least 1/10 of the length of the tag 20. The capacitor area is 0.2191 square inches. The thickness of layer 24 is approximately 50 microns and the thickness of the layer 22 is approximately 38 microns. The thickness of the dielectric layer 26 is approximately 2.5 microns. By way of example only, the frequency the tag 20 returns the resonant signal is 8.2 MHz. The Q of the tag ("quality factor," which is a measure of frequency selectivity or sharpness of the peak of a resonant circuit) is approximately 88-90.
To verify the strength of the tag's response signal, the assignee of this application, namely, Checkpoint Systems, Inc., of Thorofare, NJ, has established a "gold standard'Or reference which one can compare the performance of the tag 20 of the present invention. In particular, the gold standard is the measure of a transceiver's measured signal strength of a Series 410 tag, sold by Checkpoint Systems, Inc. (see Table 1, as well as Figs. 3-4) versus the tag 20 of the present invention. Typically, an RF tag returns a certain EM-field when it is energized by a transmitter. The strength of a magnetic field is measured in Gauss or Teslas. The magnetic field generated by the tag induces a current across an inductor which resides in the antenna of the receiver. The induced current is run across a load which creates a voltage difference across the load. This voltage should be approximately 1 GST (gold standard tag) for a series 410 tag.
The tag of the current invention generates a signal 1.7 times more powerful than the Series 410 tag. Thus the tag 20 of the current invention has a power of 1.7 GST because the transceiver measures a 1.7 voltage difference for this tag and 1.0 GST for a series 410 tag.
Table 1
CHECKPOINT SYSTEMS, INC. #410 TAG
Front Area Etched= .5807 sq. in
Back Area Etched = 1.6814 sq in.
Design Frequency = 8.4MHz
Final Frequency = 8.2 MHz
Q Range = 70-75
Capacitance 141.2 pF
Inductance = 2.495 μH number of turns = 8 Coil line width =.034 in.
Spacing between coils = .01 in.
Width of margins = .1 in.
Circuit Dimensions = 1.55 in. x 1.65 in.
As mentioned earlier, one of the key features of the tag 20 of the present invention is that enhances microwave safety. Currently, if a tag is placed inadvertently inside of a microwave oven (e.g., the user forgets to remove the food packaging which contains the security tag), the tag will be energized by the applied microwaves. Energy is stored in the tag's capacitor and throughout the traces (the antenna.) Because the traces have a resistance (though minor) there is a voltage difference between one trace and another. If the tag receives a large amount of energy, as it would if it were microwaved, the small distance between the traces and large voltage difference may cause electric arcing to occur. This can lead to fires if the electrical arc comes near or into contact with a flammable substance. To prevent this from happening, the tag 20 of the present invention is designed to have only one trace. To account for the loss in surface area of the trace, a very thick trace 50 (Fig. 1) is used. To further reduce arcing, the elbows 42-46 of the layers 22/24 are rounded rather than pointed.
Microwave energy is characterized as "high intensity" which is defined as energy greater than 1100 watts, and prolonged exposure greater than four minutes (limited exposure is a time of less than three minutes). For a tag to be considered "microwave safe" it cannot emit sparks when subjected to high power, prolonged microwave energy. When the tag 20 of the current invention is described as being "microwave resistant", this means that the tag 20 continues to operate after exposure of a limited duration of high power microwave energy when used with its intended purpose.
To demonstrate that the security tag 20 of the present invention enhances microwave safety, the Assignee of the present invention engaged a testing and certification company, namely, TUV Rheinland of North America of Youngs ville, North Carolina, a certification company, to prepare a novel test of the tag 20 of the present invention. It is believed that before then, there was no standard test for the microwave safety of a security tag.
The microwave test involves using different styles of meat that are cut into 0.5 Ib (beef) and 1 Ib (pork & chicken); the poundage being determined by the amount of moisture content within that particular meat. The tag 20 of the present invention is placed on the outside or inside the soaker pad of each meat package and then they are packaged using Styrofoam meat trays and shrink-wrap. The packages are then placed in a freezer for a 24 - 48 hour period. Every cut and style of meat has a minimum of 3 duplicates (one for each type of microwave). The meat product including the tag 20 on the label is then placed in (three packages, same weight, cut & style) and is placed into three different microwaves (see microwave types & power levels below) for 3 minutes on high power (i.e., the maximum power level of the microwave oven). The test is considered a success, if after 3 full minutes at high power in the microwave the tag 20 of the present invention has not arced or sparked. This test is performed roughly 80 times per microwave type (3 types see below) or 240 total tests.
1) Microwave Oven Wattage /cu ft - all testing must be performed using each of the following microwave specifications (or configuration):
A) 800 watts /0.8 cu ft (GE microwave oven)
B) 1000 watts / 1.2 cu ft (Sharp microwave oven)
C) 1200 watts / 1.6 cu ft (Panasonic microwave oven)
2) Type of Meat - all 3 types of meat listed below must be used in all of the testing.
A) Beef
B) Chicken
C) Pork
3) Style of Meat -all 3 styles of meat listed below must be used in all of the testing
A) Solid Mass
1) Beef- Filet, Beef Patties, Roast
2) Chicken - Boneless Breast, Cutlets
3) Pork - Tenderloin, Roast, Boneless Chops
B) Small Pieces
1) Beef- Cubes, Shish Ka Bob
2) Chicken - Nuggets, Wings
3) Pork - Sausage
C) Meat with Bones
1) Beef- T-Bone, NY Strip, Ribeye
2) Chicken - Legs, Wings, Breast
3) Pork - Ribs
4) State of Food
A) Frozen
B) Partially Frozen
C) Refrigerated
5) Weight of Food
A) 0.5 lbs with Beef when security tag is on the outside of the packaging
B) 1 Ib with Pork and Chicken when security tag is on the outside of the packaging
C) .5 lbs with Beef, Chicken or Pork when security tag has been integrated into a meat soaker pad 6) Location of Security Tag
A) Underneath Barcode (Outside)
B) Corners (upper right, lower right, upper left, lower left)
C) Middle of Package (Outside)
D) Underneath Meat (Soaker Pad)
7) Power Level
A) High Power
It should be understood that the security tag microwave-resistant testing was conducted using meat food products. However, it is within the broadest scope of the present invention that a similar test method can be applied to other food products, such as fish (0.5 Ib), shellfish, etc.
While the invention has been described in detail and with reference to specific examples thereof, it will be apparent to one skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope thereof.

Claims

CLAIMS WHAT IS CLAIMED IS:
1. A security element that is microwave-resistant, said security element comprising: a first conductive trace forming a single open loop; a second conductive trace forming a single open loop; a dielectric layer forming a single open loop and positioned between said first and second conductive traces; said first and second conductive traces being electrically-coupled at a location that penetrates said dielectric layer; and wherein said first conductive layer, said second conductive layer and said dielectric layer are encapsulated within plastic layers.
2. The security element of Claim 1 wherein each of said single open loops of said first and second conductive traces and said dielectric layer comprises at least three elbows.
3. The security element of Claim 2 wherein each of said at least three elbows defines a change in direction of said conductive trace of at least 60 degrees.
4. The security element of Claim 2 wherein said first conductive trace and said second conductive trace each comprise four elbows and wherein one of said elbows forms a capacitor plate.
5. The security element of Claim 4 wherein each of said capacitor plates is approximately 0.2191 square inches.
6. The security tag of Claim 4 wherein a ratio of a width of either of said conductive layers to a length of said security tag is at least 1 to 10.
7. The security element of Claim 2 wherein each of said at least three elbows comprises a rounded corner.
8. The security element of Claim 7 wherein each of said at least three elbows has a radius of curvature of approximately 0.15 inches.
9. The security tag of Claim 1 wherein said plastic layers comprises polypropylene.
10. The security tag of Claim 1 wherein said dielectric layer comprises a polymer.
11. The security tag of Claim 1 wherein said first and second conductive layers comprise aluminum.
12. The security tag of Claim 1 wherein plastic layers comprise: a first plastic layer adhesively-secured to said first coil layer; a second plastic layer adhesively-secured to said second coil layer; and wherein said first plastic layer and said second plastic layer each comprise overlap regions that are sealed together.
13. The security tag of Claim 1 wherein said first and second conductive layers and said dielectric layer form an electrical circuit that resonates at 8.2 MHz.
14. The security tag of Claim 13 wherein said electrical circuit has a quality factor (Q) of approximately 88-90.
15. The security tag of Claim 1 wherein said first and second conductive layers are crimped to form said electrical coupling.
16. The security tag of Claim 13 wherein said tag emits a response signal having a power that is approximately 1.7 times the power of a response signal of a security tag having multiple loop conductive traces.
17. A method for providing a security tag associated with meat or fish product packaging having a soaker pad therein, said method comprises the steps of: providing a security tag that is encapsulated to be waterproof and wherein said security tag includes a pair of single open loop conductive traces that are separated from each other by a dielectric layer and wherein said first and second conductive layers are electrically coupled at a location through said dielectric layer; and disposing said security tag within the soaker pad.
18. A method for providing a security tag associated with meat or fish product packaging having a label thereon, said method comprises the steps of: providing a security tag that is encapsulated to be waterproof and wherein said security tag includes a pair of single open loop conductive traces that are separated from each other by a dielectric layer and wherein said first and second conductive layers are electrically coupled at a location through said dielectric layer; applying an adhesive to one side of said security tag; and securing said security tag on the label.
19. A method for testing a security tag to determine if it is microwave-resistant, said method comprising the steps of:
(a) providing sample food products that are packaged in a conventional manner and includes associating the security tag under test with each of said sample food products packages; (b) subjecting the sample food products to cold temperatures for a predetermined period of time;
(c) placing each of said sample food product packages along with their respective security tags under test into respective microwave ovens;
(d) activating each of said microwave ovens on high power for three minutes and wherein each microwave has a respective microwave configuration;
(e) observing said sample food products being heated in said microwave ovens to see if any sparking or arcing occurs during heating;
(f) repeating steps (d) and (e) for a predetermined number of times; and
(g) determining that said security tag is microwave resistant if no sparking or arcing occurs after completing step (f).
20. The method of Claim 19 wherein said sample food products comprise three sample food products and wherein said respective microwave ovens comprise three microwave ovens.
21. The method of Claim 19 wherein said predetermined period of time comprises 24 to 48 hours.
22. The method of Claim 20 wherein said respective microwave configurations comprise 800 watts/0.8 ft3 , 1000 watts/1.2 ft3 and 1200 watts/1.6 ft3, respectively.
23. The method of Claim 19 wherein said predetermined number of times comprises eighty.
24. The method of Claim 19 wherein said food product is a meat product and wherein said step of associating the security tag under test with each of said sample food products packages comprises positioning said security tag within a soaker pad located in a tray of said food product package.
25. The method of Claim 19 wherein said food product is a meat product and wherein said step of associating the security tag under test with each of said sample food products packages comprises positioning said security tag on said food product package.
26. The method of Claim 19 wherein said step of subjecting the sample food products to cold temperatures comprises freezing said sample food products.
27. The method of Claim 19 wherein said step of subjecting the sample food products to cold temperatures comprises partially freezing said sample food products.
28. The method of Claim 19 wherein said step of subjecting the sample food products to cold temperatures comprises refrigerating said sample food products.
PCT/US2005/046292 2004-12-23 2005-12-21 Method and apparatus for protecting culinary products WO2006071662A2 (en)

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AU2005322200A AU2005322200B2 (en) 2004-12-23 2005-12-21 Method and apparatus for protecting culinary products
DE602005013696T DE602005013696D1 (en) 2004-12-23 2005-12-21 METHOD AND DEVICE FOR PROTECTING COOKING PRODUCTS
EP05854930A EP1829005B1 (en) 2004-12-23 2005-12-21 Method and apparatus for protecting culinary products
CA2592443A CA2592443C (en) 2004-12-23 2005-12-21 Method and apparatus for protecting culinary products
MX2007007833A MX2007007833A (en) 2004-12-23 2005-12-21 Method and apparatus for protecting culinary products.
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Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7725385B2 (en) * 2000-03-29 2010-05-25 American Express Travel Related Services Company, Inc. System and method for facilitating the handling of a dispute using disparate architectures
US7535366B2 (en) * 2006-12-13 2009-05-19 3M Innovative Properties Company Microwaveable radio frequency identification tags
US20080197969A1 (en) * 2007-02-15 2008-08-21 Vogt Eric E Methods and systems for authenticating contents of a bottle
US9013310B2 (en) * 2008-07-24 2015-04-21 International Business Machines Corporation Circuit structure and method of fabrication for facilitating radio frequency identification (RFID)
US10479579B2 (en) * 2012-03-27 2019-11-19 Robert Bosch Tool Corporation Packaging system and manufacturing thereof
WO2017111910A1 (en) * 2015-12-21 2017-06-29 Intel Corporation High performance integrated rf passives using dual lithography process
CN206451315U (en) * 2017-01-09 2017-08-29 杭州泰铭信息技术有限公司 It can detect whether the anti-theft alarm label being in the lock state
KR102494352B1 (en) * 2017-10-20 2023-02-03 삼성전기주식회사 Coil electronic component
WO2020006219A1 (en) 2018-06-27 2020-01-02 Avery Dennison Retail Information Services, Llc Rfid tags operating in the high frequency band resistant to microwave oven
CN110443338B (en) * 2019-07-11 2023-05-30 永道射频技术股份有限公司 RFID label capable of being safely used in microwave oven
CN110399965B (en) * 2019-07-31 2023-05-30 永道射频技术股份有限公司 RFID label structure for heating or processing in microwave oven

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9210781U1 (en) * 1992-08-12 1992-10-29 Esselte Meto International Produktions Gmbh, 6932 Hirschhorn, De
FR2742251A1 (en) * 1995-12-07 1997-06-13 Mamou Patrick Security label for clothing, designed to be deactivated on purchase
WO2000047410A1 (en) * 1999-02-10 2000-08-17 Nedblake Greydon W Jr Device for products with labels
WO2001031601A1 (en) * 1999-10-27 2001-05-03 Checkpoint Systems International Gmbh Securing element for electronically securing articles
US6278371B1 (en) * 1999-04-30 2001-08-21 Paper-Pak Products, Inc. Absorbent pads having theft alarm activators therein
US6724310B1 (en) * 2000-10-10 2004-04-20 Massachusetts Institute Of Technology Frequency-based wireless monitoring and identification using spatially inhomogeneous structures

Family Cites Families (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4369557A (en) * 1980-08-06 1983-01-25 Jan Vandebult Process for fabricating resonant tag circuit constructions
US4560445A (en) * 1984-12-24 1985-12-24 Polyonics Corporation Continuous process for fabricating metallic patterns on a thin film substrate
JPH0780386B2 (en) * 1989-01-25 1995-08-30 東海金属株式会社 Resonant tag and manufacturing method thereof
US5241299A (en) 1991-05-22 1993-08-31 Checkpoint Systems, Inc. Stabilized resonant tag circuit
US5142270A (en) 1991-05-22 1992-08-25 Checkpoint Systems Inc. Stabilized resonant tag circuit and deactivator
US5182544A (en) 1991-10-23 1993-01-26 Checkpoint Systems, Inc. Security tag with electrostatic protection
US5494550A (en) * 1993-09-07 1996-02-27 Sensormatic Electronics Corporation Methods for the making of electronic article surveillance tags and improved electronic article surveillance tags produced thereby
US5751256A (en) * 1994-03-04 1998-05-12 Flexcon Company Inc. Resonant tag labels and method of making same
US6441736B1 (en) * 1999-07-01 2002-08-27 Keith R. Leighton Ultra-thin flexible durable radio frequency identification devices and hot or cold lamination process for the manufacture of ultra-thin flexible durable radio frequency identification devices
US5754110A (en) 1996-03-07 1998-05-19 Checkpoint Systems, Inc. Security tag and manufacturing method
AU4203397A (en) * 1996-08-06 1998-02-25 Meto International Gmbh Electronic anti-theft element
US5963132A (en) * 1996-10-11 1999-10-05 Avid Indentification Systems, Inc. Encapsulated implantable transponder
TW350054B (en) * 1996-11-29 1999-01-11 Mitsubishi Materials Corp Burglarproof label
US6144301A (en) * 1997-02-10 2000-11-07 Safetrac Control Systems, Inc. Electronic tracking tag
DE19719434A1 (en) * 1997-05-12 1998-11-19 Meto International Gmbh Universal securing element and method for its manufacture
US5841350A (en) 1997-06-27 1998-11-24 Checkpoint Systems, Inc. Electronic security tag useful in electronic article indentification and surveillance system
HU224504B1 (en) * 1997-08-08 2005-10-28 Sca Coordination Center Nv Polymeric radio frequency resonant tags and method for manufacture
US5861809A (en) 1997-09-22 1999-01-19 Checkpoint Systems, Inc. Deactivateable resonant circuit
JP2001510670A (en) * 1997-12-05 2001-07-31 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Identification transponder
US6087940A (en) * 1998-07-28 2000-07-11 Novavision, Inc. Article surveillance device and method for forming
ATE398814T1 (en) * 1998-09-11 2008-07-15 Motorola Inc RFID LABEL APPARATUS AND METHOD
SE513359C2 (en) 1998-12-01 2000-09-04 Allgon Ab Microstrip filter device
US6091607A (en) * 1998-12-10 2000-07-18 Checkpoint Systems, Inc. Resonant tag with a conductive composition closing an electrical circuit
DE19857583A1 (en) * 1998-12-14 2000-06-15 Meto International Gmbh Security element for electronic articles has dielectric layer at least as thick in critical region, where bounding edge of lower/upper track overlaps other track, as in rest of overlap region
US6262692B1 (en) * 1999-01-13 2001-07-17 Brady Worldwide, Inc. Laminate RFID label and method of manufacture
US6645327B2 (en) * 1999-04-21 2003-11-11 Intermec Ip Corp. RF tag application system
US6121880A (en) * 1999-05-27 2000-09-19 Intermec Ip Corp. Sticker transponder for use on glass surface
JP3390389B2 (en) * 1999-12-08 2003-03-24 チェックポイント・マニュファクチュアリング・ジャパン株式会社 Resonance tag
JP2001317741A (en) * 2000-02-28 2001-11-16 Dainippon Printing Co Ltd Food automatic cooking system, and microwave oven
US6478229B1 (en) * 2000-03-14 2002-11-12 Harvey Epstein Packaging tape with radio frequency identification technology
US6400271B1 (en) 2000-03-20 2002-06-04 Checkpoint Systems, Inc. Activate/deactiveable security tag with enhanced electronic protection for use with an electronic security system
EP1269412A1 (en) * 2000-03-28 2003-01-02 Lucatron AG Rfid label with an element for regulating the resonance frequency
US6424263B1 (en) * 2000-12-01 2002-07-23 Microchip Technology Incorporated Radio frequency identification tag on a single layer substrate
US6407669B1 (en) * 2001-02-02 2002-06-18 3M Innovative Properties Company RFID tag device and method of manufacturing
US7095324B2 (en) * 2001-03-06 2006-08-22 Intermec Ip Corp Tamper evident smart label with RF transponder
JP2004534390A (en) * 2001-05-04 2004-11-11 マイクロメタル テクノロジーズ インコーポレイテッド Metallized dielectric substrate for EAS tags
JP2003006593A (en) * 2001-06-21 2003-01-10 Osaka Gas Co Ltd Package marker and manufacturing method therefor
FR2842950B1 (en) * 2002-07-25 2004-10-22 Framatome Connectors Int CAPACITIVE ANTENNA AND PRODUCTION METHOD
US6982640B2 (en) * 2002-11-21 2006-01-03 Kimberly-Clark Worldwide, Inc. RFID system and method for tracking food freshness
FR2848324B3 (en) * 2002-12-06 2005-01-21 Lionel Prat DISPLACEMENT FLIGHT SECURITY DEVICE OF THE LABEL TYPE
US6940408B2 (en) * 2002-12-31 2005-09-06 Avery Dennison Corporation RFID device and method of forming
DE20303318U1 (en) * 2003-02-28 2004-07-08 Checkpoint Systems International Gmbh security label
JP3870921B2 (en) * 2003-04-01 2007-01-24 セイコーエプソン株式会社 Contactless identification tag
US7176799B1 (en) * 2003-12-04 2007-02-13 George Schmitt & Company Assembling pressure sensitive labels with RFID tags

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9210781U1 (en) * 1992-08-12 1992-10-29 Esselte Meto International Produktions Gmbh, 6932 Hirschhorn, De
FR2742251A1 (en) * 1995-12-07 1997-06-13 Mamou Patrick Security label for clothing, designed to be deactivated on purchase
WO2000047410A1 (en) * 1999-02-10 2000-08-17 Nedblake Greydon W Jr Device for products with labels
US6278371B1 (en) * 1999-04-30 2001-08-21 Paper-Pak Products, Inc. Absorbent pads having theft alarm activators therein
WO2001031601A1 (en) * 1999-10-27 2001-05-03 Checkpoint Systems International Gmbh Securing element for electronically securing articles
US6724310B1 (en) * 2000-10-10 2004-04-20 Massachusetts Institute Of Technology Frequency-based wireless monitoring and identification using spatially inhomogeneous structures

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US20080150729A1 (en) 2008-06-26
US7355516B2 (en) 2008-04-08
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WO2006071662A3 (en) 2006-08-17
US7692547B2 (en) 2010-04-06
JP4769821B2 (en) 2011-09-07
ATE427539T1 (en) 2009-04-15
JP2008525893A (en) 2008-07-17
CA2592443A1 (en) 2006-07-06
AU2005322200A1 (en) 2006-07-06
EP1829005B1 (en) 2009-04-01
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TW200636625A (en) 2006-10-16
EP1829005A2 (en) 2007-09-05
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MX2007007833A (en) 2008-02-11
DE602005013696D1 (en) 2009-05-14

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