DE68925548D1 - Magnetische Dünnfilmvorrichtungen für Flussausbreitung - Google Patents
Magnetische Dünnfilmvorrichtungen für FlussausbreitungInfo
- Publication number
- DE68925548D1 DE68925548D1 DE68925548T DE68925548T DE68925548D1 DE 68925548 D1 DE68925548 D1 DE 68925548D1 DE 68925548 T DE68925548 T DE 68925548T DE 68925548 T DE68925548 T DE 68925548T DE 68925548 D1 DE68925548 D1 DE 68925548D1
- Authority
- DE
- Germany
- Prior art keywords
- domains
- magnetic
- flux
- layers
- axis
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y25/00—Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3109—Details
- G11B5/3113—Details for improving the magnetic domain structure or avoiding the formation or displacement of undesirable magnetic domains
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3109—Details
- G11B5/313—Disposition of layers
- G11B5/3143—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding
- G11B5/3146—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding magnetic layers
- G11B5/3153—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding magnetic layers including at least one magnetic thin film coupled by interfacing to the basic magnetic thin film structure
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/332—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using thin films
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
- G11C11/02—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements
- G11C11/14—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using thin-film elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F10/00—Thin magnetic films, e.g. of one-domain structure
- H01F10/26—Thin magnetic films, e.g. of one-domain structure characterised by the substrate or intermediate layers
- H01F10/30—Thin magnetic films, e.g. of one-domain structure characterised by the substrate or intermediate layers characterised by the composition of the intermediate layers, e.g. seed, buffer, template, diffusion preventing, cap layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F10/00—Thin magnetic films, e.g. of one-domain structure
- H01F10/32—Spin-exchange-coupled multilayers, e.g. nanostructured superlattices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
- H01F41/30—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates for applying nanostructures, e.g. by molecular beam epitaxy [MBE]
- H01F41/302—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates for applying nanostructures, e.g. by molecular beam epitaxy [MBE] for applying spin-exchange-coupled multilayers, e.g. nanostructured superlattices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/90—Magnetic feature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/922—Static electricity metal bleed-off metallic stock
- Y10S428/9265—Special properties
- Y10S428/928—Magnetic property
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/11—Magnetic recording head
- Y10T428/1171—Magnetic recording head with defined laminate structural detail
- Y10T428/1186—Magnetic recording head with defined laminate structural detail with head pole component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12465—All metal or with adjacent metals having magnetic properties, or preformed fiber orientation coordinate with shape
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
- Y10T428/12597—Noncrystalline silica or noncrystalline plural-oxide component [e.g., glass, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
- Y10T428/264—Up to 3 mils
- Y10T428/265—1 mil or less
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/227,808 US5089334A (en) | 1988-08-03 | 1988-08-03 | Flux spreading thin film magnetic devices |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68925548D1 true DE68925548D1 (de) | 1996-03-14 |
DE68925548T2 DE68925548T2 (de) | 1996-09-05 |
Family
ID=22854551
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE68925548T Expired - Fee Related DE68925548T2 (de) | 1988-08-03 | 1989-07-20 | Magnetische Dünnfilmvorrichtungen für Flussausbreitung |
Country Status (5)
Country | Link |
---|---|
US (1) | US5089334A (de) |
EP (1) | EP0353911B1 (de) |
JP (1) | JPH02181402A (de) |
AT (1) | ATE133807T1 (de) |
DE (1) | DE68925548T2 (de) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5085935A (en) * | 1988-08-03 | 1992-02-04 | Digital Equipment Corporation | Flux spreading thin film magnetic devices |
US5089334A (en) * | 1988-08-03 | 1992-02-18 | Digital Equipment Corporation | Flux spreading thin film magnetic devices |
US5428893A (en) * | 1989-06-02 | 1995-07-04 | Quantum Corporation | Method of making a transducer with improved inductive coupling |
US5311386A (en) * | 1989-06-02 | 1994-05-10 | Digital Equipment Corporation | Transducer with improved inductive coupling |
US5184267A (en) * | 1989-06-02 | 1993-02-02 | Digital Equipment Corporation | Transducer with improved inductive coupling |
US5195005A (en) * | 1989-06-02 | 1993-03-16 | Digital Equipment Corporation | Tranducer with improved inductive coupling |
US5379172A (en) * | 1990-09-19 | 1995-01-03 | Seagate Technology, Inc. | Laminated leg for thin film magnetic transducer |
US5187628A (en) * | 1990-10-12 | 1993-02-16 | Fujitsu Limited | Thin film magnetic head having magnetic anisotropy with in-plane and perpendicular components |
JP3022023B2 (ja) * | 1992-04-13 | 2000-03-15 | 株式会社日立製作所 | 磁気記録再生装置 |
US5375023A (en) * | 1992-12-29 | 1994-12-20 | International Business Machines Corporation | Submicron thin film inductive head with self-aligned staggered pole-tips |
MY121538A (en) * | 1993-04-30 | 2006-02-28 | Victor Company Of Japan | Thin film magnetic head |
US5982177A (en) * | 1997-08-08 | 1999-11-09 | Florida State University | Magnetoresistive sensor magnetically biased in a region spaced from a sensing region |
JP2000284028A (ja) * | 1999-03-30 | 2000-10-13 | Kaneo Mori | 薄膜磁性体mi素子 |
US6846396B2 (en) * | 2002-08-08 | 2005-01-25 | Applied Materials, Inc. | Active magnetic shielding |
US7239478B1 (en) * | 2004-01-31 | 2007-07-03 | Western Digital (Fremont), Inc. | Write element for perpendicular recording in a data storage system |
JP4202958B2 (ja) * | 2004-03-30 | 2008-12-24 | 株式会社東芝 | 磁気抵抗効果素子 |
US7697244B2 (en) * | 2006-06-12 | 2010-04-13 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetic head with stabilized ferromagnetic shield |
EP3220544B1 (de) * | 2016-03-16 | 2018-12-26 | Crocus Technology | Signalformungsschaltung auf magnetoresistiver basis für audioanwendungen |
US11152019B2 (en) * | 2019-11-12 | 2021-10-19 | International Business Machines Corporation | Write transducer with symmetric yoke structure |
Family Cites Families (51)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3880602A (en) * | 1967-07-28 | 1975-04-29 | Centre Nat Rech Scient | Thin layer magnetic structures for binary information stores |
US3549825A (en) * | 1967-09-18 | 1970-12-22 | Ncr Co | Magnetic transducer with planar spiral coil extending into the gap |
US3961299A (en) * | 1969-10-28 | 1976-06-01 | Commissariat A L'energie Atomique | Magnetic circuit having low reluctance |
US3967368A (en) * | 1972-10-11 | 1976-07-06 | International Business Machines Corporation | Method for manufacturing and using an internally biased magnetoresistive magnetic transducer |
GB1440343A (en) * | 1973-04-13 | 1976-06-23 | Data Recording Instr Co | Magnetic core and coil assemblies |
FR2248566B1 (de) * | 1973-10-23 | 1976-11-19 | Cii | |
JPS52131711A (en) * | 1976-04-28 | 1977-11-04 | Kokusai Denshin Denwa Co Ltd | Thin film magnetic head |
US4103315A (en) * | 1977-06-24 | 1978-07-25 | International Business Machines Corporation | Antiferromagnetic-ferromagnetic exchange bias films |
JPS5459915A (en) * | 1977-10-20 | 1979-05-15 | Sony Corp | Method and apparatus for reading of magnetic recording signal |
US4165525A (en) * | 1978-02-15 | 1979-08-21 | U.S. Philips Corporation | Magnetic head having a core provided on a substrate by means of thin-film technology |
JPS5584016A (en) * | 1978-12-19 | 1980-06-24 | Sony Corp | Magnetic head and its manufacture |
US4335410A (en) * | 1979-01-15 | 1982-06-15 | Magnex Corporation | Thin film magnetic transducer |
US4242710A (en) * | 1979-01-29 | 1980-12-30 | International Business Machines Corporation | Thin film head having negative magnetostriction |
US4374403A (en) * | 1979-06-27 | 1983-02-15 | Matsushita Electric Industrial Co., Ltd. | Magnetic recording and reproducing system |
US4413296A (en) * | 1979-07-16 | 1983-11-01 | Eastman Kodak Company | Thin film magnetoresistive head |
US4295173A (en) * | 1979-10-18 | 1981-10-13 | International Business Machines Corporation | Thin film inductive transducer |
JPS56163517A (en) * | 1980-05-19 | 1981-12-16 | Fujitsu Ltd | Vertical magnetization recording head |
US4356523A (en) * | 1980-06-09 | 1982-10-26 | Ampex Corporation | Narrow track magnetoresistive transducer assembly |
JPS57141013A (en) * | 1981-02-25 | 1982-09-01 | Canon Electronics Inc | Thin film magnetic sensor |
JPS57164416A (en) * | 1981-03-31 | 1982-10-09 | Fujitsu Ltd | Magnetic head |
JPS5877208A (ja) * | 1981-11-04 | 1983-05-10 | Hitachi Ltd | 多層磁性薄膜とその製造方法 |
NL8200481A (nl) * | 1982-02-09 | 1983-09-01 | Philips Nv | Magneetkop. |
US4613918A (en) * | 1982-04-14 | 1986-09-23 | Matsushita Electric Industrial Co., Ltd. | Perpendicular magnetic playback head and a perpendicular magnetic recording and reproducing device |
US4566050A (en) * | 1982-12-30 | 1986-01-21 | International Business Machines Corp. (Ibm) | Skew insensitive magnetic read head |
US4535375A (en) * | 1983-01-14 | 1985-08-13 | Magnetic Peripherals, Inc. | Magnetoresistive head |
JPH061729B2 (ja) * | 1983-01-17 | 1994-01-05 | 株式会社日立製作所 | 磁性体膜およびそれを用いた磁気ヘッド |
JPH0622170B2 (ja) * | 1983-12-16 | 1994-03-23 | 株式会社日立製作所 | 磁気ヘッド |
DE3346876A1 (de) * | 1983-12-23 | 1985-07-11 | Siemens AG, 1000 Berlin und 8000 München | Kombinierter schreib- und lese-magnetkopf zur senkrechten magnetisierung eines entsprechenden aufzeichnungsmediums |
US4626946A (en) * | 1984-02-28 | 1986-12-02 | International Business Machines Corporation | Twin track vertical read-write head structure |
JPS61153812A (ja) * | 1984-12-26 | 1986-07-12 | Nec Corp | 薄膜磁気ヘツド用磁極 |
US4656546A (en) * | 1985-01-22 | 1987-04-07 | Digital Equipment Corporation | Vertical magnetic recording arrangement |
JPS61171114A (ja) * | 1985-01-25 | 1986-08-01 | Nec Corp | 軟磁性薄膜の製造方法 |
JPS61192011A (ja) * | 1985-02-20 | 1986-08-26 | Hitachi Ltd | 薄膜磁気ヘツド |
US4668913A (en) * | 1985-03-14 | 1987-05-26 | International Business Machines Corporation | Constant flux magneto resistive magnetic reluctance sensing apparatus |
JPH069083B2 (ja) * | 1985-04-04 | 1994-02-02 | 日本電気株式会社 | 垂直磁気ヘッド |
JPS6233414A (ja) * | 1985-08-06 | 1987-02-13 | Nec Corp | 軟磁性膜の製造方法 |
US4663685A (en) * | 1985-08-15 | 1987-05-05 | International Business Machines | Magnetoresistive read transducer having patterned longitudinal bias |
US4649447A (en) * | 1985-08-15 | 1987-03-10 | International Business Machines | Combed MR sensor |
US4698711A (en) * | 1985-10-02 | 1987-10-06 | International Business Machines Corporation | Simplified, shielded twin-track read/write head structure |
JPS62204418A (ja) * | 1986-03-04 | 1987-09-09 | Nec Corp | 薄膜磁気ヘツド |
JPS62229511A (ja) * | 1986-03-31 | 1987-10-08 | Hitachi Ltd | 薄膜磁気ヘツド |
US4695351A (en) * | 1986-07-10 | 1987-09-22 | Digital Equipment Corporation | Method for producing magnetic heads |
JPH0782612B2 (ja) * | 1986-11-28 | 1995-09-06 | 日本電気株式会社 | 薄膜磁気ヘツド及びその製造方法 |
US4803580A (en) * | 1987-02-17 | 1989-02-07 | Magnetic Peripherals Inc. | Double-gap magnetoresistive head having an elongated central write/shield pole completely shielding the magnetoresistive sensor strip in the read gap |
US4891725A (en) * | 1987-02-17 | 1990-01-02 | Magnetic Peripherals Inc. | Magnetoresistive sensor having antiferromagnetic exchange-biased ends |
US4868698A (en) * | 1987-03-05 | 1989-09-19 | Matsushita Electric Industrial Co., Ltd. | Magnetic head |
US4825318A (en) * | 1987-06-05 | 1989-04-25 | Carnegie-Mellon University | Compound read/write element for rigid magnetic disk files |
US4816947A (en) * | 1987-11-12 | 1989-03-28 | International Business Machines | Single track vertical and horizontal recording read/write head design |
US4912584A (en) * | 1988-03-09 | 1990-03-27 | Digital Equipment Corporation | Method for fabricating magnetic recording poles |
US5089334A (en) * | 1988-08-03 | 1992-02-18 | Digital Equipment Corporation | Flux spreading thin film magnetic devices |
CA1334447C (en) * | 1988-08-03 | 1995-02-14 | Digital Equipment Corporation | Perpendicular anisotropy in thin film devices |
-
1988
- 1988-08-03 US US07/227,808 patent/US5089334A/en not_active Expired - Lifetime
-
1989
- 1989-07-20 EP EP89307389A patent/EP0353911B1/de not_active Expired - Lifetime
- 1989-07-20 DE DE68925548T patent/DE68925548T2/de not_active Expired - Fee Related
- 1989-07-20 AT AT89307389T patent/ATE133807T1/de not_active IP Right Cessation
- 1989-08-01 JP JP1200126A patent/JPH02181402A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0353911A3 (de) | 1993-03-17 |
US5089334A (en) | 1992-02-18 |
EP0353911A2 (de) | 1990-02-07 |
ATE133807T1 (de) | 1996-02-15 |
DE68925548T2 (de) | 1996-09-05 |
JPH02181402A (ja) | 1990-07-16 |
EP0353911B1 (de) | 1996-01-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |