JPS5750326A - Substrate for magnetic disc - Google Patents

Substrate for magnetic disc

Info

Publication number
JPS5750326A
JPS5750326A JP56107159A JP10715981A JPS5750326A JP S5750326 A JPS5750326 A JP S5750326A JP 56107159 A JP56107159 A JP 56107159A JP 10715981 A JP10715981 A JP 10715981A JP S5750326 A JPS5750326 A JP S5750326A
Authority
JP
Japan
Prior art keywords
lamellae
substrate
magnetic disc
anisotropic
laminate
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.)
Granted
Application number
JP56107159A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6146891B2 (enExample
Inventor
Furoshiyu Aruberuto
Hinkeru Horugen
Kurausu Georuku
Kinzeru Aruritsuhi
Rogara Deiitoritsuhi
Shiyunaidaa Yohan
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
Publication of JPS5750326A publication Critical patent/JPS5750326A/ja
Publication of JPS6146891B2 publication Critical patent/JPS6146891B2/ja
Granted 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
    • 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
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73911—Inorganic substrates
    • G11B5/73913—Composites or coated substrates
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Magnetic Record Carriers (AREA)
  • Reinforced Plastic Materials (AREA)
JP56107159A 1980-09-06 1981-07-10 Substrate for magnetic disc Granted JPS5750326A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP80105339A EP0047330B1 (de) 1980-09-06 1980-09-06 Magnetplatten-Trägerkern aus faserverstärktem Kunststoff

Publications (2)

Publication Number Publication Date
JPS5750326A true JPS5750326A (en) 1982-03-24
JPS6146891B2 JPS6146891B2 (enExample) 1986-10-16

Family

ID=8186778

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56107159A Granted JPS5750326A (en) 1980-09-06 1981-07-10 Substrate for magnetic disc

Country Status (6)

Country Link
US (1) US4415942A (enExample)
EP (1) EP0047330B1 (enExample)
JP (1) JPS5750326A (enExample)
AT (1) ATE7971T1 (enExample)
CA (1) CA1172154A (enExample)
DE (1) DE3068214D1 (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62211814A (ja) * 1986-03-12 1987-09-17 三菱電機株式会社 ガスブツシング
JPS62211813A (ja) * 1986-03-12 1987-09-17 三菱電機株式会社 ガスブツシング
JPH01148545A (ja) * 1987-12-04 1989-06-09 Ube Ind Ltd 層間ハイブリッド積層材

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59215024A (ja) * 1983-05-23 1984-12-04 Fuji Photo Film Co Ltd フレキシブル磁気ディスク
JPS6035333A (ja) * 1983-08-08 1985-02-23 Kao Corp 磁気ディスク用基板
JPS6148180A (ja) * 1984-08-11 1986-03-08 Fuji Photo Film Co Ltd 回転磁気記録体装置
JPH0673179B2 (ja) * 1985-06-14 1994-09-14 ポリプラスチックス株式会社 磁気デイスク
US4680211A (en) * 1985-07-25 1987-07-14 The Dow Chemical Company Recording disks
US4887178A (en) * 1988-06-13 1989-12-12 Minnesota Mining And Manufacturing Company Aligned stretched surface recording medium
US4971932B1 (en) * 1989-02-24 1995-01-03 Corning Glass Works Magnetic memory storage devices
US6055140A (en) 1997-07-25 2000-04-25 Seagate Technology, Inc. Rigid disc plastic substrate with high stiffness insert
US7179551B2 (en) 1999-02-12 2007-02-20 General Electric Company Poly(arylene ether) data storage media
JP2002536778A (ja) 1999-02-12 2002-10-29 ゼネラル・エレクトリック・カンパニイ データ記憶媒体
JP2000322767A (ja) * 1999-05-10 2000-11-24 Victor Co Of Japan Ltd 光ディスク
US7227717B1 (en) * 2001-06-18 2007-06-05 Seagate Technology Llc Asymmetric disk surface properties in one head disk drives
US10921859B2 (en) * 2017-04-10 2021-02-16 Securaplane Technologies, Inc. Composite electronics cases and methods of making and using the same

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1299029B (de) * 1967-12-11 1969-07-10 Ibm Deutschland Verfahren und Vorrichtung zum Herstellen einer Magnetspeicherplatte
DE1953079A1 (de) * 1968-11-01 1970-07-02 Burroughs Corp Lamellenplatte fuer Magnetplattenspeicher od.dgl.
US3646533A (en) * 1969-04-08 1972-02-29 Burroughs Corp Rotary disk assembly having low-density core for information storage system
US3761333A (en) * 1971-05-21 1973-09-25 Ibm Method of and apparatus for manufacturing of a magnetic storage disk
IT998073B (it) * 1971-07-30 1976-01-20 Univ Johns Hopkins Strutture rotoriche a filamenti
US3839133A (en) * 1973-07-09 1974-10-01 Permali Inc Transformer insulating end ring
US4376963A (en) * 1980-12-19 1983-03-15 International Business Machines Corporation Composite magnetic recording disk

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62211814A (ja) * 1986-03-12 1987-09-17 三菱電機株式会社 ガスブツシング
JPS62211813A (ja) * 1986-03-12 1987-09-17 三菱電機株式会社 ガスブツシング
JPH01148545A (ja) * 1987-12-04 1989-06-09 Ube Ind Ltd 層間ハイブリッド積層材

Also Published As

Publication number Publication date
DE3068214D1 (en) 1984-07-19
EP0047330B1 (de) 1984-06-13
US4415942A (en) 1983-11-15
EP0047330A1 (de) 1982-03-17
CA1172154A (en) 1984-08-07
JPS6146891B2 (enExample) 1986-10-16
ATE7971T1 (de) 1984-06-15

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