DE69410974D1 - Magnetischer Aufzeichungsträger - Google Patents

Magnetischer Aufzeichungsträger

Info

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
Application number
DE69410974T
Other languages
English (en)
Other versions
DE69410974T2 (de
Inventor
Shinji Miyazaki
Jiro Yoshinari
Koji Kobayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TDK Corp
Original Assignee
TDK Corp
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 TDK Corp filed Critical TDK Corp
Publication of DE69410974D1 publication Critical patent/DE69410974D1/de
Application granted granted Critical
Publication of DE69410974T2 publication Critical patent/DE69410974T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
DE69410974T 1993-12-28 1994-12-22 Magnetischer Aufzeichungsträger Expired - Fee Related DE69410974T2 (de)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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