KR910008661A - 자기 기록 매체 - Google Patents

자기 기록 매체 Download PDF

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Publication number
KR910008661A
KR910008661A KR1019900015909A KR900015909A KR910008661A KR 910008661 A KR910008661 A KR 910008661A KR 1019900015909 A KR1019900015909 A KR 1019900015909A KR 900015909 A KR900015909 A KR 900015909A KR 910008661 A KR910008661 A KR 910008661A
Authority
KR
South Korea
Prior art keywords
magnetic recording
nonmagnetic
thin film
metal thin
recording media
Prior art date
Application number
KR1019900015909A
Other languages
English (en)
Other versions
KR940005350B1 (ko
Inventor
노리아끼 다니
규조 나까무라
미찌오 이시까와
마사노리 하시모또
요시후미 오오따
Original Assignee
다까무라진 뻬이
니혼신꾸 기쥬쯔 가부시끼가이샤
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 다까무라진 뻬이, 니혼신꾸 기쥬쯔 가부시끼가이샤 filed Critical 다까무라진 뻬이
Publication of KR910008661A publication Critical patent/KR910008661A/ko
Application granted granted Critical
Publication of KR940005350B1 publication Critical patent/KR940005350B1/ko

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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)

Abstract

내용 없음

Description

자기 기록 매체
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는, 본 발명의 일실시예에 의한 자기기록 매체의 전체 구조를 나타내는 사시도.
제2도는, 제1도의 선 A-A에 따른 단면도.
제3도는 자기 헤드의 부상량과 충돌 횟수의 관계를 나타내는 특성선도이다.

Claims (2)

  1. 비자성기체상에, 자성층, 보호층을 순차적으로 형성하여 이루는 자기 기록매체에 있어서, 상기 비자성기체가, 유리기관, 및 이 유리기판상에 형성된 비자성 금속박막으로 이루고, 이 비자성 금속박막의 표면상에는, 다수의 미세한 동심원상의 흠이 만들어져 있는 것을 특징으로 하는 자기 기록 매체.
  2. 제1항에 있어서, 상기 비자성 금속 박막의 막두께가. 0.03㎛이상 5㎛이하인 것을 특징으로 하는 자기 기록매체.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019900015909A 1989-10-09 1990-10-06 자기기록 매체 KR940005350B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1262202A JPH03125322A (ja) 1989-10-09 1989-10-09 磁気記録媒体
JP1-262202 1989-10-09

Publications (2)

Publication Number Publication Date
KR910008661A true KR910008661A (ko) 1991-05-31
KR940005350B1 KR940005350B1 (ko) 1994-06-17

Family

ID=17372499

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900015909A KR940005350B1 (ko) 1989-10-09 1990-10-06 자기기록 매체

Country Status (4)

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

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
JPH03125322A (ja) 1991-05-28
EP0422547A3 (en) 1991-10-30
DE69018754T2 (de) 1995-11-30
EP0422547B1 (en) 1995-04-19
EP0422547A2 (en) 1991-04-17
KR940005350B1 (ko) 1994-06-17
DE69018754D1 (de) 1995-05-24

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