DE69127857D1 - Magnetplatte, Verfahren zu deren Herstellung und Magnetplattengerät welches eine Magnetplatte enthält - Google Patents

Magnetplatte, Verfahren zu deren Herstellung und Magnetplattengerät welches eine Magnetplatte enthält

Info

Publication number
DE69127857D1
DE69127857D1 DE69127857T DE69127857T DE69127857D1 DE 69127857 D1 DE69127857 D1 DE 69127857D1 DE 69127857 T DE69127857 T DE 69127857T DE 69127857 T DE69127857 T DE 69127857T DE 69127857 D1 DE69127857 D1 DE 69127857D1
Authority
DE
Germany
Prior art keywords
magnetic disk
production
disk device
magnetic
disk
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
DE69127857T
Other languages
English (en)
Other versions
DE69127857T2 (de
Inventor
Kenichi Gomi
Hideaki Tanaka
Hiroyuki Sugimoto
Shoichi Sawahata
Masaki Ohura
Yoshihiko Miyake
Yoshiki Kato
Hiroshi Yashiki
Youichi Inomata
Yoshihiro Moriguchi
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.)
HGST Japan 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
Application granted granted Critical
Publication of DE69127857D1 publication Critical patent/DE69127857D1/de
Publication of DE69127857T2 publication Critical patent/DE69127857T2/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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/60—Fluid-dynamic spacing of heads from record-carriers
    • G11B5/6005—Specially adapted for spacing from a rotating disc using a fluid cushion
    • 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
    • G11B5/41—Cleaning of heads
    • 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
    • G11B5/726—Two or more protective coatings
    • G11B5/7262—Inorganic protective coating
    • G11B5/7264—Inorganic carbon protective coating, e.g. graphite, diamond like carbon or doped carbon
    • G11B5/7266—Inorganic carbon protective coating, e.g. graphite, diamond like carbon or doped carbon comprising a lubricant over the inorganic carbon coating
    • 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/82—Disk carriers
    • 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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • 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
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
DE69127857T 1990-07-04 1991-07-03 Magnetplatte, Verfahren zu deren Herstellung und Magnetplattengerät welches eine Magnetplatte enthält Expired - Fee Related DE69127857T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP17523490 1990-07-04
JP24749290 1990-09-19

Publications (2)

Publication Number Publication Date
DE69127857D1 true DE69127857D1 (de) 1997-11-13
DE69127857T2 DE69127857T2 (de) 1998-03-05

Family

ID=26496567

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69127857T Expired - Fee Related DE69127857T2 (de) 1990-07-04 1991-07-03 Magnetplatte, Verfahren zu deren Herstellung und Magnetplattengerät welches eine Magnetplatte enthält

Country Status (4)

Country Link
US (1) US5656349A (de)
EP (1) EP0464786B1 (de)
KR (1) KR100229690B1 (de)
DE (1) DE69127857T2 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5504646A (en) * 1989-10-13 1996-04-02 Hitachi, Ltd. Magnetic disk including protective layer having surface with protusions and magnetic disk apparatus including the magnetic disk
JPH08102163A (ja) * 1994-09-30 1996-04-16 Fujitsu Ltd 磁気記録媒体及び磁気ディスク装置
EP0731490A3 (de) * 1995-03-02 1998-03-11 Ebara Corporation Ultrafeines Mikroherstellungsverfahren unter Verwendung eines Energiebündel
JPH0935407A (ja) * 1995-07-20 1997-02-07 Hitachi Ltd 磁気ディスク装置
US6057984A (en) * 1995-10-25 2000-05-02 Mitsubishi Chemical Corporation Method for data writing/read-out using a contact start and stop system
MY113928A (en) * 1995-10-25 2002-06-29 Showa Denko Kk Magnetic disc and data writing/reading-out method
IL147207A0 (en) 1999-06-21 2002-08-14 Gen Hospital Corp Methods and devices for culturing cells
US6742380B2 (en) * 2000-07-28 2004-06-01 Seagate Technology Llc Technique for measuring small distances between, and for measuring the flatness of, electrically conductive surfaces
AU2002367057B2 (en) * 2001-12-21 2007-01-11 Organogenesis Inc. Chamber with adjustable volume for cell culture and organ assist
JP5835874B2 (ja) * 2010-06-22 2015-12-24 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 磁気ディスクの製造方法
KR20200090760A (ko) * 2017-12-07 2020-07-29 가부시키가이샤 한도오따이 에네루기 켄큐쇼 반도체 장치, 및 반도체 장치의 제작 방법

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5720925A (en) * 1980-07-09 1982-02-03 Nec Corp Magnetic disk
JPS59124030A (ja) * 1982-12-29 1984-07-18 Fujitsu Ltd 磁気デイスク製造方法
JPS59124031A (ja) * 1982-12-29 1984-07-18 Fujitsu Ltd 磁気デイスク製造法
JPS605423A (ja) * 1983-06-22 1985-01-12 Fujitsu Ltd 連続磁性膜型磁気記録媒体
JPS60195738A (ja) * 1984-03-16 1985-10-04 Fujitsu Ltd 磁気デイスク製造方法
DE3679494D1 (de) * 1985-07-19 1991-07-04 Toshiba Kawasaki Kk Gleitstueckzusammenbau fuer magnetische koepfe.
JPH01134720A (ja) * 1987-11-20 1989-05-26 Mitsubishi Electric Corp 磁気ディスク
JPH0240130A (ja) * 1988-07-29 1990-02-08 Canon Inc 垂直磁気記録媒体
JPH02137122A (ja) * 1988-11-17 1990-05-25 Matsushita Electric Ind Co Ltd 薄膜磁気ディスク
US5285343A (en) * 1989-10-13 1994-02-08 Hitachi, Ltd. Magnetic disk with surface protective layer having convex portions and magnetic disk apparatus including such a magnetic disk

Also Published As

Publication number Publication date
EP0464786A3 (en) 1992-05-20
US5656349A (en) 1997-08-12
KR920003265A (ko) 1992-02-29
EP0464786A2 (de) 1992-01-08
EP0464786B1 (de) 1997-10-08
DE69127857T2 (de) 1998-03-05
KR100229690B1 (ko) 1999-11-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: HITACHI GLOBAL STORAGE TECHNOLOGIES JAPAN,LTD., OD

8339 Ceased/non-payment of the annual fee