FR2688920B1 - Support d'enregistrement magnetique et son procede de fabrication. - Google Patents

Support d'enregistrement magnetique et son procede de fabrication.

Info

Publication number
FR2688920B1
FR2688920B1 FR9211043A FR9211043A FR2688920B1 FR 2688920 B1 FR2688920 B1 FR 2688920B1 FR 9211043 A FR9211043 A FR 9211043A FR 9211043 A FR9211043 A FR 9211043A FR 2688920 B1 FR2688920 B1 FR 2688920B1
Authority
FR
France
Prior art keywords
manufacturing
recording medium
magnetic recording
magnetic
medium
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
FR9211043A
Other languages
English (en)
Other versions
FR2688920A1 (fr
Inventor
Noriyoshi Goda
Shinya Matsuoka
Tatsuo Kawaide
Takaaki Shirakura
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of FR2688920A1 publication Critical patent/FR2688920A1/fr
Application granted granted Critical
Publication of FR2688920B1 publication Critical patent/FR2688920B1/fr
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
    • G11B5/676—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 magnetic layers separated by a nonmagnetic layer, e.g. antiferromagnetic layer, Cu layer or coupling layer
    • 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
    • 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
    • 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
    • Y10T428/12806—Refractory [Group IVB, VB, or VIB] metal-base component
    • Y10T428/12826—Group VIB metal-base component
    • Y10T428/1284—W-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
    • Y10T428/12—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
    • Y10T428/12806—Refractory [Group IVB, VB, or VIB] metal-base component
    • Y10T428/12826—Group VIB metal-base component
    • Y10T428/12847—Cr-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
    • Y10T428/12—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
    • Y10T428/12806—Refractory [Group IVB, VB, or VIB] metal-base component
    • Y10T428/12826—Group VIB metal-base component
    • Y10T428/12847—Cr-base component
    • Y10T428/12854—Next to Co-, Fe-, or Ni-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
    • Y10T428/12—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
    • Y10T428/12931—Co-, Fe-, or Ni-base components, alternative to each other
FR9211043A 1991-09-17 1992-09-16 Support d'enregistrement magnetique et son procede de fabrication. Expired - Fee Related FR2688920B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3262556A JPH0573881A (ja) 1991-09-17 1991-09-17 磁気記録媒体およびその製造方法

Publications (2)

Publication Number Publication Date
FR2688920A1 FR2688920A1 (fr) 1993-09-24
FR2688920B1 true FR2688920B1 (fr) 1994-10-28

Family

ID=17377451

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9211043A Expired - Fee Related FR2688920B1 (fr) 1991-09-17 1992-09-16 Support d'enregistrement magnetique et son procede de fabrication.

Country Status (3)

Country Link
US (1) US5744256A (fr)
JP (1) JPH0573881A (fr)
FR (1) FR2688920B1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5772857A (en) * 1995-11-21 1998-06-30 Seagate Technology, Inc. Method of manufacturing CoCrTa/CoCrTaPt bi-layer magnetic thin films
US6150015A (en) 1997-12-04 2000-11-21 Komag, Incorporated Ultra-thin nucleation layer for magnetic thin film media and the method for manufacturing the same
US6589676B1 (en) 2000-07-25 2003-07-08 Seagate Technology Llc Corrosion resistant magnetic thin film media
JP3491064B2 (ja) 2000-10-20 2004-01-26 日本航空電子工業株式会社 高速伝送用コネクタ
JP2002208127A (ja) * 2000-11-09 2002-07-26 Fuji Electric Co Ltd 磁気記録媒体およびその製造方法
US7314675B1 (en) 2003-01-30 2008-01-01 Seagate Technology Llc Magnetic media with high Ms magnetic layer
KR100624418B1 (ko) * 2004-02-25 2006-09-18 삼성전자주식회사 수직자기기록매체 및 그 제조방법
US6971916B2 (en) 2004-03-29 2005-12-06 Japan Aviation Electronics Industry Limited Electrical connector for use in transmitting a signal
WO2010032767A1 (fr) 2008-09-16 2010-03-25 Hoya株式会社 Support d'enregistrement magnétique vertical
JP5620071B2 (ja) * 2008-09-16 2014-11-05 ダブリュディ・メディア・シンガポール・プライベートリミテッド 垂直磁気記録媒体
JP2010140568A (ja) * 2008-12-12 2010-06-24 Toshiba Corp 磁気記録媒体、その製造方法、および磁気記録装置
JP4966396B2 (ja) * 2010-04-30 2012-07-04 株式会社東芝 磁気記録媒体の製造方法
US8404369B2 (en) * 2010-08-03 2013-03-26 WD Media, LLC Electroless coated disks for high temperature applications and methods of making the same
US9985294B2 (en) 2015-05-29 2018-05-29 Pacesetter, Inc. High energy density and high rate Li battery

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59119532A (ja) * 1982-12-25 1984-07-10 Tdk Corp 磁気記録媒体
JPS59119531A (ja) * 1982-12-25 1984-07-10 Tdk Corp 磁気記録媒体
JPS59119534A (ja) * 1982-12-26 1984-07-10 Tdk Corp 磁気記録媒体
JPS60157715A (ja) * 1984-01-26 1985-08-19 Tdk Corp 磁気記録媒体
EP0302706B1 (fr) * 1987-08-06 1994-07-27 Sumitomo Metal Mining Company Limited Disque magnétique pour enregistrement horizontal
US5023148A (en) * 1987-12-30 1991-06-11 Seagate Technology, Inc. Tine film cobalt-containing recording medium
JP2555683B2 (ja) * 1988-04-04 1996-11-20 日本ビクター株式会社 磁気記録媒体

Also Published As

Publication number Publication date
FR2688920A1 (fr) 1993-09-24
JPH0573881A (ja) 1993-03-26
US5744256A (en) 1998-04-28

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse

Effective date: 20090529