KR870009347A - 자기기록매체 - Google Patents

자기기록매체 Download PDF

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Publication number
KR870009347A
KR870009347A KR870002473A KR870002473A KR870009347A KR 870009347 A KR870009347 A KR 870009347A KR 870002473 A KR870002473 A KR 870002473A KR 870002473 A KR870002473 A KR 870002473A KR 870009347 A KR870009347 A KR 870009347A
Authority
KR
South Korea
Prior art keywords
recording medium
magnetic recording
substrate
magnetic layer
film
Prior art date
Application number
KR870002473A
Other languages
English (en)
Other versions
KR960000822B1 (ko
Inventor
가즈노브 지바
Original Assignee
오오가 노리오
소니 가부시끼 가이샤
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 오오가 노리오, 소니 가부시끼 가이샤 filed Critical 오오가 노리오
Publication of KR870009347A publication Critical patent/KR870009347A/ko
Application granted granted Critical
Publication of KR960000822B1 publication Critical patent/KR960000822B1/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
    • G11B5/733—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 characterised by the addition of non-magnetic particles
    • 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
    • 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
    • G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
    • G11B5/65—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
    • G11B5/653—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing Fe or Ni
    • 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
    • G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
    • G11B5/65—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
    • G11B5/656—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing Co
    • 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
    • G11B5/73923—Organic polymer 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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/85—Coating a support with a magnetic layer by vapour deposition
    • 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

Landscapes

  • Magnetic Record Carriers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Paints Or Removers (AREA)
  • Thin Magnetic Films (AREA)

Abstract

내용 없음

Description

자기기록매체
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 강자성 금속 박막형 자기기록매체 구조를 도시하는 확장된 횡단면도.
제2도는 엔벨로우프 파형 측정방법을 설명하기 위한 개략적 도시도.
제3A도 및 3B도는 엔벨로우프 파형의 개략적 도시도.

Claims (4)

  1. 비자기 필름 기판과, 상기 기판상에 형성된 자성층을 포함하는 자기기록매체에 있어서,
    상기 기판이 3.5 내지 9 마이크로미터의 두께를 갖고 적어도 20㎏/㎟의 F-5갑을 갖고, 상기 자성층이 1,700 내지 3,000Å의 두께를 갖고 강자성 금속 또는 합금박막으로 형성되는 것을 특징으로 하는 자기기록매체.
  2. 제1항에 있어서,
    상기 비자기 필름 기판이 방향족 폴리아미드 수지 필름으로 형성되는 것을 특징으로 하는 자기기록매체.
  3. 제1항에 있어서,
    상기 비자기 필름 기판이 폴리에틸렌-2,6-나프탈레이트 필름으로 형성되는 것을 특징으로 하는 자기기록매체.
  4. 제1항에 있어서,
    상기 자성층이, 진공침전에 의해 상기 기판상에 경사지게 침전된 Co-Ni합금으로 형성되는 것을 특징으로 하는 자기기록매체.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019870002473A 1986-03-20 1987-03-19 자기기록매체 KR960000822B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63156 1986-03-20
JP61063156A JPS62219317A (ja) 1986-03-20 1986-03-20 金属薄膜型磁気記録媒体

Publications (2)

Publication Number Publication Date
KR870009347A true KR870009347A (ko) 1987-10-26
KR960000822B1 KR960000822B1 (ko) 1996-01-13

Family

ID=13221086

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019870002473A KR960000822B1 (ko) 1986-03-20 1987-03-19 자기기록매체

Country Status (4)

Country Link
EP (1) EP0237954B1 (ko)
JP (1) JPS62219317A (ko)
KR (1) KR960000822B1 (ko)
DE (1) DE3779781T2 (ko)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5344957B2 (ko) * 1973-12-28 1978-12-02
JPS50102303A (ko) * 1974-01-11 1975-08-13
JPS58153231A (ja) * 1982-03-05 1983-09-12 Toray Ind Inc 磁気記録テ−プ
DE3379923D1 (en) * 1982-03-30 1989-06-29 Toray Industries Magnetic recording medium
DE3378727D1 (en) * 1982-08-26 1989-01-26 Toray Industries Magnetic recording material
JPS59203230A (ja) * 1983-05-04 1984-11-17 Teijin Ltd 二軸配向ポリエステルフイルム
JPS60113315A (ja) * 1983-11-24 1985-06-19 Teijin Ltd 磁気記録媒体
JPS6126923A (ja) * 1984-07-17 1986-02-06 Tdk Corp 磁気記録媒体

Also Published As

Publication number Publication date
DE3779781T2 (de) 1993-01-07
EP0237954A3 (en) 1989-09-27
JPS62219317A (ja) 1987-09-26
EP0237954A2 (en) 1987-09-23
EP0237954B1 (en) 1992-06-17
DE3779781D1 (de) 1992-07-23
KR960000822B1 (ko) 1996-01-13

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