DE69018754D1 - Magnetischer Aufzeichnungsträger. - Google Patents

Magnetischer Aufzeichnungsträger.

Info

Publication number
DE69018754D1
DE69018754D1 DE69018754T DE69018754T DE69018754D1 DE 69018754 D1 DE69018754 D1 DE 69018754D1 DE 69018754 T DE69018754 T DE 69018754T DE 69018754 T DE69018754 T DE 69018754T DE 69018754 D1 DE69018754 D1 DE 69018754D1
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 - Lifetime
Application number
DE69018754T
Other languages
English (en)
Other versions
DE69018754T2 (de
Inventor
Noriaki Tani
Kyuzo Nakamura
Michio Ishikawa
Masanori Hashimoto
Yoshifumi Ota
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.)
Ulvac Inc
Original Assignee
Ulvac Inc
Nihon Shinku Gijutsu KK
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 Ulvac Inc, Nihon Shinku Gijutsu KK filed Critical Ulvac Inc
Publication of DE69018754D1 publication Critical patent/DE69018754D1/de
Application granted granted Critical
Publication of DE69018754T2 publication Critical patent/DE69018754T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G11B5/73—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
    • 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
    • G11B5/7325—
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Magnetic Record Carriers (AREA)
DE69018754T 1989-10-09 1990-10-08 Magnetischer Aufzeichnungsträger. Expired - Lifetime DE69018754T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1262202A JPH03125322A (ja) 1989-10-09 1989-10-09 磁気記録媒体

Publications (2)

Publication Number Publication Date
DE69018754D1 true DE69018754D1 (de) 1995-05-24
DE69018754T2 DE69018754T2 (de) 1995-11-30

Family

ID=17372499

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69018754T Expired - Lifetime DE69018754T2 (de) 1989-10-09 1990-10-08 Magnetischer Aufzeichnungsträger.

Country Status (4)

Country Link
EP (1) EP0422547B1 (de)
JP (1) JPH03125322A (de)
KR (1) KR940005350B1 (de)
DE (1) DE69018754T2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6134341B2 (ja) * 2014-03-28 2017-05-24 株式会社神戸製鋼所 Ｎｉメッキ処理に用いられる下地層被覆基板、Ｎｉメッキ層含有積層体および磁気記録媒体

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4735840A (en) * 1985-11-12 1988-04-05 Cyberdisk, Inc. Magnetic recording disk and sputtering process and apparatus for producing same
JPS63273208A (ja) * 1987-04-30 1988-11-10 Hoya Corp 磁気記録媒体
JPH029016A (ja) * 1988-06-28 1990-01-12 Victor Co Of Japan Ltd 薄膜磁気ディスク

Also Published As

Publication number Publication date
EP0422547A3 (en) 1991-10-30
EP0422547B1 (de) 1995-04-19
EP0422547A2 (de) 1991-04-17
KR940005350B1 (ko) 1994-06-17
KR910008661A (ko) 1991-05-31
DE69018754T2 (de) 1995-11-30
JPH03125322A (ja) 1991-05-28

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition