KR920702791A - 광자기기록매체의 제조방법 및 광자기기록매체 - Google Patents

광자기기록매체의 제조방법 및 광자기기록매체

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Publication number
KR920702791A
KR920702791A KR1019910701870A KR910701870A KR920702791A KR 920702791 A KR920702791 A KR 920702791A KR 1019910701870 A KR1019910701870 A KR 1019910701870A KR 910701870 A KR910701870 A KR 910701870A KR 920702791 A KR920702791 A KR 920702791A
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KR
South Korea
Prior art keywords
magneto
optical recording
protective layer
recording medium
layer
Prior art date
Application number
KR1019910701870A
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English (en)
Inventor
가즈유끼 미야모토
Original Assignee
다께바야시 쇼오고
미쓰이세끼유 가가꾸고오교오 가부시끼가이샤
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Publication date
Application filed by 다께바야시 쇼오고, 미쓰이세끼유 가가꾸고오교오 가부시끼가이샤 filed Critical 다께바야시 쇼오고
Publication of KR920702791A publication Critical patent/KR920702791A/ko

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    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/254—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of protective topcoat layers
    • G11B7/2542—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of protective topcoat layers consisting essentially of organic resins
    • 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
    • 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
    • G11B11/10584—Record carriers characterised by the selection of the material or by the structure or form characterised by the form, e.g. comprising mechanical protection elements
    • 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
    • G11B11/10586—Record carriers characterised by the selection of the material or by the structure or form characterised by the selection of the material
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • G11B2007/24302—Metals or metalloids
    • G11B2007/24306—Metals or metalloids transition metal elements of groups 3-10
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
    • G11B2007/25705—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials
    • G11B2007/2571—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials containing group 14 elements except carbon (Si, Ge, Sn, Pb)
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
    • G11B2007/25705—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials
    • G11B2007/25713—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials containing nitrogen
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/254—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of protective topcoat layers
    • G11B7/2542—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of protective topcoat layers consisting essentially of organic resins
    • G11B7/2545—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of protective topcoat layers consisting essentially of organic resins containing inorganic fillers, e.g. particles or fibres
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/258—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of reflective layers
    • G11B7/2585—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of reflective layers based on aluminium

Abstract

내용 없음

Description

광자기기록매체의 제조방법 및 광자기기록매체
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는, 본 발명에 의한 광자기기록매체의 개략단면도이고.
제2도는 본 발명에 의한 원반상의 광자기기록매체에서 보호층의 반경방향의 개략단면도이다.
또 제3도는 본 발명에 의한 다른 원반상의 광자기기록매체에서의 보호층의 반경방향의 개략 단면도이다.

Claims (7)

  1. 기판위의 적어도 광자기기록층과 보호층이 설비된 광자기기록매체에 있어서, 보호층표면에 홈의 평균간격이 20㎛이하인 홈이 원주방향으로 형성되고, 또 이 보호층의 반경방향의 표면평균조도가 0.003~0.01㎛인 것을 특징으로 하는 광자기기록매체.
  2. 제1항에 있어서, 홈의 평균간격이 10㎛이하이고, 또 반경방향의 표면조도가 0.003~0.008㎛인 광자기기록매체.
  3. 기판 위에 적어도 광자기기록층과 보호층이 설비된 광자기매체에 있어서, 보호층이 평균입경 0.2~5㎛인 비자성 입자를 함유한 것을 특징으로 하는 광자기 기록매체.
  4. 제1~제3항의 어느 한 항에 있어서, 보호층이 자외선경화수지, 열경화수지 또는 전자선 경화성수지인 광자기기록매체.
  5. 기판 위에 적어도 광자기기록층과 보호층이 설비된 광자기기록매체의 제조방법에 있어서 보호층의 표면을, 원주방향으로 기계적으로 조면화하는 것을 특징으로 하는 광자기기록매체의 제조방법.
  6. 기판 위에 적어도 광자기기록층과 보호층이 설비된 광자기기록매체이 제조방법에 있어서, 보호층의 표면에 홈 평균간격이 20㎛인 홈을 원주방향에 따라서 형성하고, 또 이 보호층의 반경방향의 표면평균조도가 0.003~0.01㎛로 되게 조면화하는 것을 특징으로 하는 광자기기록매체의 제조방법.
  7. 기판 위에 적어도 광자기기록층과 보호층이 설비된 광자기기록매체에 있어서, 보호층이 카본스퍼터막인 것을 특징으로 하는 광자기기록매체.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910701870A 1990-04-17 1991-04-17 광자기기록매체의 제조방법 및 광자기기록매체 KR920702791A (ko)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
JP10070190 1990-04-17
JP90-100702 1990-04-17
JP10070290 1990-04-17
JP10069990 1990-04-17
JP90-100701 1990-04-17
JP10070090 1990-04-17
JP90-100700 1990-04-17
JP90-100699 1990-04-17
PCT/JP1991/000504 WO1991016708A1 (fr) 1990-04-17 1991-04-17 Procede de preparation d'un support d'enregistrement magnetooptique et support d'enregistrement magnetooptique

Publications (1)

Publication Number Publication Date
KR920702791A true KR920702791A (ko) 1992-10-06

Family

ID=27468853

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910701870A KR920702791A (ko) 1990-04-17 1991-04-17 광자기기록매체의 제조방법 및 광자기기록매체

Country Status (4)

Country Link
EP (1) EP0483363A4 (ko)
KR (1) KR920702791A (ko)
CA (1) CA2058923A1 (ko)
WO (1) WO1991016708A1 (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5470627A (en) * 1992-03-06 1995-11-28 Quantum Corporation Double-sided optical media for a disk storage device

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5584045A (en) * 1978-12-19 1980-06-24 Nec Corp Magnetic memory substance and its manufacture
JPS62195744A (ja) * 1986-02-21 1987-08-28 Fuji Electric Co Ltd 光磁気記録媒体
JPH0754591B2 (ja) * 1986-09-11 1995-06-07 セイコーエプソン株式会社 光記録媒体
JPS6464118A (en) * 1987-09-04 1989-03-10 Kao Corp Magnetic recording medium
US5047274A (en) * 1987-09-28 1991-09-10 Noboru Tsuya Annodized aluminum substrate for a magnetic recording disk in which pores are filled with a non magnetic material and the surface polished and etched
JPH0198116A (ja) * 1987-10-09 1989-04-17 Nikon Corp 磁気ディスク
JPH01107344A (ja) * 1987-10-21 1989-04-25 Hitachi Ltd 光磁気記録媒体及びその製造方法
JPH01194152A (ja) * 1988-01-29 1989-08-04 Daicel Chem Ind Ltd 光磁気ディスクの保護コート法
JPH01194149A (ja) * 1988-01-29 1989-08-04 Nec Home Electron Ltd 光ディスク基板
JPH01223619A (ja) * 1988-03-01 1989-09-06 Mitsubishi Electric Corp 磁気記録用媒体
JPH01251446A (ja) * 1988-03-31 1989-10-06 Nec Home Electron Ltd 光ディスク
JPH01319143A (ja) * 1988-06-20 1989-12-25 Ricoh Co Ltd 光磁気記録媒体
JP2571927Y2 (ja) * 1993-05-25 1998-05-20 新神戸電機株式会社 板状体の切断装置

Also Published As

Publication number Publication date
WO1991016708A1 (fr) 1991-10-31
EP0483363A4 (en) 1993-03-17
CA2058923A1 (en) 1991-10-18
EP0483363A1 (en) 1992-05-06

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