DE69410974D1 - Magnetischer Aufzeichungsträger - Google Patents
Magnetischer AufzeichungsträgerInfo
- Publication number
- DE69410974D1 DE69410974D1 DE69410974T DE69410974T DE69410974D1 DE 69410974 D1 DE69410974 D1 DE 69410974D1 DE 69410974 T DE69410974 T DE 69410974T DE 69410974 T DE69410974 T DE 69410974T DE 69410974 D1 DE69410974 D1 DE 69410974D1
- Authority
- DE
- Germany
- Prior art keywords
- record carrier
- magnetic record
- magnetic
- carrier
- record
- 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
-
- 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
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
- G11B5/66—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers
- G11B5/672—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers having different compositions in a plurality of magnetic layers, e.g. layer compositions having differing elemental components or differing proportions of elements
-
- 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
- G11B5/62—Record carriers characterised by the selection of the material
-
- 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
- Y10T428/12—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.]
- Y10T428/1266—O, S, or organic compound in metal 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
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base 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
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
-
- 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
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
- Y10T428/2495—Thickness [relative or absolute]
- Y10T428/24967—Absolute thicknesses specified
- Y10T428/24975—No layer or component greater than 5 mils thick
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP33414593 | 1993-12-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69410974D1 true DE69410974D1 (de) | 1998-07-16 |
DE69410974T2 DE69410974T2 (de) | 1998-11-05 |
Family
ID=18274038
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69410974T Expired - Fee Related DE69410974T2 (de) | 1993-12-28 | 1994-12-22 | Magnetischer Aufzeichungsträger |
Country Status (6)
Country | Link |
---|---|
US (1) | US5558945A (de) |
EP (1) | EP0661695B1 (de) |
KR (1) | KR100238342B1 (de) |
DE (1) | DE69410974T2 (de) |
HK (1) | HK1008966A1 (de) |
TW (1) | TW297113B (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5834111A (en) * | 1994-05-31 | 1998-11-10 | Hmt Technology Corporation | Multilayered magnetic recording medium with coercivity gradient |
JP3277245B2 (ja) * | 1995-03-27 | 2002-04-22 | 富士通株式会社 | 光磁気記録媒体及びその再生方法 |
US5772857A (en) * | 1995-11-21 | 1998-06-30 | Seagate Technology, Inc. | Method of manufacturing CoCrTa/CoCrTaPt bi-layer magnetic thin films |
US6168861B1 (en) * | 1997-12-12 | 2001-01-02 | Seagate Technology Llc | High coercivity, high signal-to-noise ratio dual magnetic layer media |
US6967061B1 (en) | 1999-11-03 | 2005-11-22 | Seagate Technology Llc | Bilayer magnetic structure for high density recording media |
JP3867544B2 (ja) * | 2001-10-16 | 2007-01-10 | ソニー株式会社 | 磁気記録媒体およびその製造方法 |
JP2004253060A (ja) * | 2003-02-20 | 2004-09-09 | Sony Corp | 磁気テープ |
US11315596B2 (en) * | 2019-09-17 | 2022-04-26 | International Business Machines Corporation | Magnetic recording tape fabrication method having peek substrate |
US11244704B2 (en) | 2019-09-17 | 2022-02-08 | International Business Machines Corporation | Magnetic recording tape having resilient substrate |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54145505A (en) * | 1978-05-04 | 1979-11-13 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
JPS6199932A (ja) * | 1984-10-19 | 1986-05-19 | Sony Corp | 垂直磁気記録媒体の製造方法 |
DE3610431A1 (de) * | 1985-03-28 | 1986-10-02 | Victor Company Of Japan, Ltd., Yokohama, Kanagawa | Quermagnetisierungsaufzeichnungsmedium |
JPS61294635A (ja) * | 1985-06-21 | 1986-12-25 | Canon Inc | 磁気記録媒体 |
CA1315612C (en) * | 1986-03-18 | 1993-04-06 | Shogo Nasu | Perpendicular magnetic storage medium |
US4770924A (en) * | 1986-07-02 | 1988-09-13 | Tdk Corporation | Magnetic recording medium |
US4966821A (en) * | 1986-07-17 | 1990-10-30 | Ricoh Company, Ltd. | Perpendicular magnetic recording medium |
JPH01124115A (ja) * | 1987-11-09 | 1989-05-17 | Hitachi Maxell Ltd | 磁気記録媒体およびその製造方法 |
JPH01208720A (ja) * | 1988-02-15 | 1989-08-22 | Mitsubishi Electric Corp | 磁気記録媒体 |
JPH0268712A (ja) * | 1988-09-05 | 1990-03-08 | Hitachi Maxell Ltd | 薄膜型磁気記録媒体 |
JPH02179917A (ja) * | 1988-12-29 | 1990-07-12 | Matsushita Electric Ind Co Ltd | 磁気記録媒体 |
JP2798745B2 (ja) * | 1989-11-20 | 1998-09-17 | 日本放送協会 | 垂直磁気記録二層媒体の製造方法 |
JP2897840B2 (ja) * | 1990-05-10 | 1999-05-31 | ティーディーケイ株式会社 | 磁気記録媒体 |
JP3167128B2 (ja) * | 1990-05-21 | 2001-05-21 | ティーディーケイ株式会社 | 磁気記録媒体 |
JPH04102223A (ja) * | 1990-08-20 | 1992-04-03 | Hitachi Ltd | 磁気記録媒体及びその製造方法並びに磁気記録装置 |
JPH05101365A (ja) * | 1991-03-22 | 1993-04-23 | Tdk Corp | 垂直磁気記録媒体およびその製造方法 |
JP3050421B2 (ja) * | 1991-05-13 | 2000-06-12 | 日立マクセル株式会社 | 磁気記録媒体 |
JPH05342553A (ja) * | 1992-06-05 | 1993-12-24 | Matsushita Electric Ind Co Ltd | 磁気記録媒体及びその製造方法 |
-
1994
- 1994-12-21 US US08/360,965 patent/US5558945A/en not_active Expired - Fee Related
- 1994-12-22 DE DE69410974T patent/DE69410974T2/de not_active Expired - Fee Related
- 1994-12-22 EP EP94120359A patent/EP0661695B1/de not_active Expired - Lifetime
- 1994-12-27 KR KR1019940037552A patent/KR100238342B1/ko not_active IP Right Cessation
- 1994-12-27 TW TW083112225A patent/TW297113B/zh active
-
1998
- 1998-08-04 HK HK98109680A patent/HK1008966A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR950020437A (ko) | 1995-07-24 |
TW297113B (de) | 1997-02-01 |
DE69410974T2 (de) | 1998-11-05 |
HK1008966A1 (en) | 1999-05-21 |
KR100238342B1 (ko) | 2000-01-15 |
EP0661695A2 (de) | 1995-07-05 |
US5558945A (en) | 1996-09-24 |
EP0661695A3 (de) | 1996-09-18 |
EP0661695B1 (de) | 1998-06-10 |
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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 |