KR860002794A - 광자기 기록 매체 - Google Patents

광자기 기록 매체 Download PDF

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Publication number
KR860002794A
KR860002794A KR1019850006625A KR850006625A KR860002794A KR 860002794 A KR860002794 A KR 860002794A KR 1019850006625 A KR1019850006625 A KR 1019850006625A KR 850006625 A KR850006625 A KR 850006625A KR 860002794 A KR860002794 A KR 860002794A
Authority
KR
South Korea
Prior art keywords
magneto
optical recording
magnetic film
recording medium
film
Prior art date
Application number
KR1019850006625A
Other languages
English (en)
Inventor
쯔요시(외 2) 가도우
Original Assignee
비쓰다 가쓰시게
가부시기 가이샤 히다찌 세이사꾸쇼
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 비쓰다 가쓰시게, 가부시기 가이샤 히다찌 세이사꾸쇼 filed Critical 비쓰다 가쓰시게
Publication of KR860002794A publication Critical patent/KR860002794A/ko

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24085—Pits
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10502—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing characterised by the transducing operation to be executed
    • G11B11/10504—Recording
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/1055—Disposition or mounting of transducers relative to record carriers
    • G11B11/10576—Disposition or mounting of transducers relative to record carriers with provision for moving the transducers for maintaining alignment or spacing relative to the carrier
    • G11B11/10578—Servo format, e.g. prepits, guide tracks, pilot signals
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form

Abstract

내용 없음

Description

광자기 기록 매체
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 의한 광자기 기록매체의 1실시예를 도시한 광자기 디스크의 평면도.
제2도는 그 반경방향의 단면도.
제3도는 수직자성막의 일부를 도시한 사시도.

Claims (6)

  1. 투명기판의 편면에 수직자성막이 마련되고, 이 수직자성막이 미리 소정의 방향에 자화되어서 이루어진 기록매체 2매를, 양수직자성막의 자화의 방향이 역방향이 되도록 양수직자성막을 대면시켜서 접착제에 의하여 붙여서 된 광자기 기록매체.
  2. 특허청구의 범위 제1항에 있어서, 상기 양수직자성막의, 적어도 상기 투명막으로부터 먼 표면의 각각에 , 보호막이 마련되어서 구성된 광자기 기록매체.
  3. 특허청구의 범위 제2항에 있어서, 상기 보호막이 유전체막인 광자기 기록매체.
  4. 특허청구의 범위 제1항에 있어서, 기록·재생 및 소거하는 레이저비임을 광학적인 안내로서 작용하는 안내골을 구비하고, 이 안내골이 복수의 영역에 분할되어서 되고, 이 영역의 각각이, 적어도 해당영역을 식별하는 어드레스를 포함하는 헤더정보를 위상구조의 핏트로 미리 형성한 헤더부와, 이 헤더부에 계속 이어지는 데이터부가 있고, 이 데이터부의 수직자성막에 자화방향의 변화에 의해서 정보를 기억시킬수가 있는 광자기 기록매체.
  5. 특허청구의 범위 제4항에 있어서, 상기 핏트가 상기 안내골 사이의 평탄부에 배설되어서 이루어진 광자기 기록매체.
  6. 특허청구의 범위 제1항에 있어서, 상기 접착제가 열경화형 접착제인 광자기 기록매체.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019850006625A 1984-09-14 1985-09-11 광자기 기록 매체 KR860002794A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP59191548A JPS6171436A (ja) 1984-09-14 1984-09-14 光磁気記録媒体
JP59-191548 1984-09-14

Publications (1)

Publication Number Publication Date
KR860002794A true KR860002794A (ko) 1986-04-30

Family

ID=16276504

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019850006625A KR860002794A (ko) 1984-09-14 1985-09-11 광자기 기록 매체

Country Status (3)

Country Link
EP (1) EP0178423A3 (ko)
JP (1) JPS6171436A (ko)
KR (1) KR860002794A (ko)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1303739C (en) * 1987-06-02 1992-06-16 Fred W. Spong Magneto-optic records
DE3732875A1 (de) * 1987-09-30 1989-04-20 Thomson Brandt Gmbh Optischer aufzeichnungstraeger
DE68928843T2 (de) * 1988-08-24 1999-06-02 Mitsubishi Electric Corp Magnetooptisches speichermedium
JPH02132603A (ja) * 1988-11-11 1990-05-22 Fuji Photo Film Co Ltd 光磁気ディスクの初期化方法
KR930009225B1 (ko) * 1989-09-05 1993-09-24 미쯔비시덴기 가부시끼가이샤 광자기 기록 매체, 광자기 기록 장치 및 광자기 기록 매체의 제조방법

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5724046A (en) * 1980-07-16 1982-02-08 Matsushita Electric Ind Co Ltd Photoelectric recording medium and its recorer and reproducer
GB2083677B (en) * 1980-07-16 1985-01-23 Matsushita Electric Ind Co Ltd Magnetooptical recording medium and a magnetooptical recording-and reeproducing device
EP0100995A3 (en) * 1982-08-10 1985-10-16 Kabushiki Kaisha Toshiba Optical disk
JPS5954051A (ja) * 1982-09-20 1984-03-28 Pioneer Electronic Corp 光学式情報記録担体及びその製造方法
JPS607634A (ja) * 1983-06-25 1985-01-16 Canon Inc 光熱磁気記録媒体

Also Published As

Publication number Publication date
JPS6171436A (ja) 1986-04-12
EP0178423A2 (en) 1986-04-23
EP0178423A3 (en) 1988-01-20

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