DE69024379D1 - Carbonüberzug für eine magnetische Dünnfilmaufzeichnungsplatte - Google Patents

Carbonüberzug für eine magnetische Dünnfilmaufzeichnungsplatte

Info

Publication number
DE69024379D1
DE69024379D1 DE69024379T DE69024379T DE69024379D1 DE 69024379 D1 DE69024379 D1 DE 69024379D1 DE 69024379 T DE69024379 T DE 69024379T DE 69024379 T DE69024379 T DE 69024379T DE 69024379 D1 DE69024379 D1 DE 69024379D1
Authority
DE
Germany
Prior art keywords
thin film
magnetic thin
carbon coating
recording plate
film recording
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
DE69024379T
Other languages
English (en)
Other versions
DE69024379T2 (de
Inventor
Richard Henry Ahlert
Kwang Kon Kim
James Kent Howard
Anthony Wai Wu
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of DE69024379D1 publication Critical patent/DE69024379D1/de
Publication of DE69024379T2 publication Critical patent/DE69024379T2/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
    • G11B5/72—Protective coatings, e.g. anti-static or antifriction
    • G11B5/727—Inorganic carbon protective coating, e.g. graphite, diamond like carbon or doped carbon
    • 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
    • Y10T428/30—Self-sustaining carbon mass or layer with impregnant or other layer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
DE69024379T 1989-01-26 1990-01-25 Carbonüberzug für eine magnetische Dünnfilmaufzeichnungsplatte Expired - Fee Related DE69024379T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/302,844 US5030494A (en) 1989-01-26 1989-01-26 Carbon overcoat for a thin film magnetic recording disk containing discrete clusters of tungsten (W) or tungsten carbide (WC) which project from the surface of the overcoat

Publications (2)

Publication Number Publication Date
DE69024379D1 true DE69024379D1 (de) 1996-02-08
DE69024379T2 DE69024379T2 (de) 1996-07-18

Family

ID=23169452

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69024379T Expired - Fee Related DE69024379T2 (de) 1989-01-26 1990-01-25 Carbonüberzug für eine magnetische Dünnfilmaufzeichnungsplatte

Country Status (4)

Country Link
US (1) US5030494A (de)
EP (1) EP0381652B1 (de)
JP (1) JPH0766540B2 (de)
DE (1) DE69024379T2 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5949612A (en) * 1995-03-21 1999-09-07 Censtor Corp. Low friction sliding hard disk drive system
US5271802A (en) * 1990-12-27 1993-12-21 International Business Machines Corporation Method for making a thin film magnetic head having a protective coating
US5486276A (en) * 1992-09-10 1996-01-23 Fujitsu Limited Method for manufacturing small magnetic disks from a large disk
JPH06111287A (ja) * 1992-09-30 1994-04-22 Matsushita Electric Ind Co Ltd 磁気記録媒体
US5773124A (en) * 1993-02-22 1998-06-30 Hitachi, Ltd. Magnetic recording medium comprising a protective layer having specified electrical resistivity and density
US5569506A (en) * 1993-10-06 1996-10-29 International Business Machines Corporation Magnetic recording disk and disk drive with improved head-disk interface
US5705287A (en) * 1994-09-20 1998-01-06 International Business Machines Corporation Magnetic recording disk with metal nitride texturing layer
US6804085B1 (en) * 1995-03-21 2004-10-12 Seagate Technology, Llc Hard drive system interface between a disk surface and a transducer contacting the surface during communication
JP3669457B2 (ja) 1996-03-19 2005-07-06 富士通株式会社 磁気記録媒体及びその製造方法
JP2001189011A (ja) * 1999-12-28 2001-07-10 Toshiba Corp 磁気記録媒体及びこれを用いた磁気記録再生装置
US6638622B2 (en) * 2001-01-11 2003-10-28 Hitachi Global Storage Technologies Perfluorinated polyethers with metal carboxylate end groups as anti-wetting and corrosion-protective agents
EP1934995B1 (de) * 2005-07-15 2014-04-02 Impact Coatings AB (Publ.) Kontaktelement und kontaktanordnung

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3912461A (en) * 1970-11-02 1975-10-14 Texas Instruments Inc Low temperature metal carbonitride coatings
DE3277996D1 (en) * 1981-10-15 1988-02-18 Matsushita Electric Ind Co Ltd Magnetic recording medium
DE3246361A1 (de) * 1982-02-27 1983-09-08 Philips Patentverwaltung Gmbh, 2000 Hamburg Kohlenstoff enthaltende gleitschicht
JPS5961106A (ja) * 1982-09-30 1984-04-07 Nec Corp 磁気記憶体
US4675240A (en) * 1982-11-22 1987-06-23 International Business Machines Corporation Magnetic recording disk using silicon substrate
JPS60139871A (ja) * 1983-12-27 1985-07-24 伴　實 絹繊維の改質加工方法
CA1232228A (en) * 1984-03-13 1988-02-02 Tatsuro Miyasato Coating film and method and apparatus for producing the same
JPS6154017A (ja) * 1984-08-24 1986-03-18 Asahi Chem Ind Co Ltd 保護層をもつ磁気記録媒体
KR890004256B1 (ko) * 1984-09-29 1989-10-28 니뽕 빅터 가부시끼 가이샤 자기 기록 매체
JPS61105720A (ja) * 1984-10-26 1986-05-23 Denki Kagaku Kogyo Kk 磁気記憶媒体
JPS6243823A (ja) * 1985-08-21 1987-02-25 Nec Corp 磁気記録媒体
US4647494A (en) * 1985-10-31 1987-03-03 International Business Machines Corporation Silicon/carbon protection of metallic magnetic structures
JPS62125522A (ja) * 1985-11-27 1987-06-06 Hitachi Ltd 薄膜磁気デイスク用保護膜
JPH0638287B2 (ja) * 1987-03-06 1994-05-18 富士写真フイルム株式会社 磁気記録媒体
US4840843A (en) * 1986-10-17 1989-06-20 Fuji Photo Film Co., Ltd. Magnetic recording medium
JPS63102014A (ja) * 1986-10-17 1988-05-06 Fuji Photo Film Co Ltd 磁気記録媒体
JPS63217518A (ja) * 1987-03-05 1988-09-09 Fuji Photo Film Co Ltd 磁気記録媒体
US4778582A (en) * 1987-06-02 1988-10-18 International Business Machines Corporation Process for making a thin film metal alloy magnetic recording disk with a hydrogenated carbon overcoat
US4789913A (en) * 1987-08-03 1988-12-06 International Business Machines Corporation Method and apparatus for lubricating a magnetic disk continuously in a recording file

Also Published As

Publication number Publication date
EP0381652A3 (de) 1991-05-29
DE69024379T2 (de) 1996-07-18
US5030494A (en) 1991-07-09
JPH02230510A (ja) 1990-09-12
EP0381652A2 (de) 1990-08-08
JPH0766540B2 (ja) 1995-07-19
EP0381652B1 (de) 1995-12-27

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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