DE69517726D1 - Magnetooptisches Aufzeichnungsmedium und Verfahren zu seiner Herstellung - Google Patents

Magnetooptisches Aufzeichnungsmedium und Verfahren zu seiner Herstellung

Info

Publication number
DE69517726D1
DE69517726D1 DE69517726T DE69517726T DE69517726D1 DE 69517726 D1 DE69517726 D1 DE 69517726D1 DE 69517726 T DE69517726 T DE 69517726T DE 69517726 T DE69517726 T DE 69517726T DE 69517726 D1 DE69517726 D1 DE 69517726D1
Authority
DE
Germany
Prior art keywords
magneto
production
recording medium
optical recording
optical
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
DE69517726T
Other languages
English (en)
Other versions
DE69517726T2 (de
Inventor
Nobuyuki Takamori
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Application granted granted Critical
Publication of DE69517726D1 publication Critical patent/DE69517726D1/de
Publication of DE69517726T2 publication Critical patent/DE69517726T2/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
    • 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
    • G11B11/10589—Details
    • G11B11/10593—Details for improving read-out properties, e.g. polarisation of light
    • 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
    • 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
DE69517726T 1994-03-24 1995-03-14 Magnetooptisches Aufzeichnungsmedium und Verfahren zu seiner Herstellung Expired - Lifetime DE69517726T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6054063A JP2912154B2 (ja) 1994-03-24 1994-03-24 磁気光学記録媒体およびその製造方法

Publications (2)

Publication Number Publication Date
DE69517726D1 true DE69517726D1 (de) 2000-08-10
DE69517726T2 DE69517726T2 (de) 2000-12-07

Family

ID=12960165

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69517726T Expired - Lifetime DE69517726T2 (de) 1994-03-24 1995-03-14 Magnetooptisches Aufzeichnungsmedium und Verfahren zu seiner Herstellung

Country Status (5)

Country Link
US (2) US5635309A (de)
EP (1) EP0674310B1 (de)
JP (1) JP2912154B2 (de)
DE (1) DE69517726T2 (de)
TW (1) TW303455B (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8243557B2 (en) * 2006-12-26 2012-08-14 Hitachi Global Storage Technologies Netherlands B.V. Optimized ridge apertures for thermally assisted magnetic recording

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0670858B2 (ja) * 1983-05-25 1994-09-07 ソニー株式会社 光磁気記録媒体とその製法
JPS6098611A (ja) * 1983-11-04 1985-06-01 Kureha Chem Ind Co Ltd 熱磁気記録材料の製造方法
CA1254385A (en) * 1985-07-26 1989-05-23 Noboru Sato Magneto-optical recording medium having amorphous artificially layered structure of rare earth element and transition metal element
US4749628A (en) * 1986-04-29 1988-06-07 International Business Machines Corporation Multilayered vertical magnetic recording medium
JP2521713B2 (ja) * 1986-05-21 1996-08-07 沖電気工業株式会社 光磁気記録用媒体
US4871614A (en) * 1986-07-09 1989-10-03 Canon Kabushiki Kaisha Opto-magnetic recording medium having three exchange-coupled magnetic layers
JP2579489B2 (ja) * 1987-07-13 1997-02-05 順彦 佐藤 粘着物による袋口の開閉保持具
US5239534A (en) * 1988-12-12 1993-08-24 Nikon Corporation Multi-layer over write capable magnetooptical recording medium
DE3904611A1 (de) * 1989-02-16 1990-08-23 Hoechst Ag Magnetooptische schicht und verfahren zu ihrer herstellung
US5233575A (en) * 1989-11-10 1993-08-03 Mitsubishi Kasei Corporation Magneto-optical recording medium
US6200673B1 (en) * 1989-11-13 2001-03-13 Hitachi, Ltd. Magneto-optical recording medium
JPH03209647A (ja) * 1990-01-11 1991-09-12 Ricoh Co Ltd 光磁気記録媒体
US5082749A (en) * 1990-03-15 1992-01-21 E. I. Du Pont De Nemours And Company Platinum or palladium/cobalt multilayer on a zinc oxide or indium oxide layer for magneto-optical recording
JPH0465523A (ja) * 1990-06-29 1992-03-02 Mitsubishi Rayon Co Ltd 深い皺を有するアクリル系合成繊維の製造方法
JPH0690976B2 (ja) * 1990-10-05 1994-11-14 インターナショナル・ビジネス・マシーンズ・コーポレーション 光磁気記録媒体
JPH03181041A (ja) * 1990-11-28 1991-08-07 Ricoh Co Ltd 光磁気記録媒体
US5441804A (en) * 1991-02-12 1995-08-15 Mitsubishi Plastics Industries Limited Magneto-optical recording medium and method for production thereof
JPH0570922A (ja) * 1991-08-09 1993-03-23 Koichi Moriya 複合材の無機化合物による封孔処理法
JPH06187681A (ja) * 1992-12-16 1994-07-08 Ricoh Co Ltd 光磁気記録媒体
JPH0773516A (ja) * 1993-09-02 1995-03-17 Nikon Corp 光磁気記録媒体及び光磁気記録方法
US5436072A (en) * 1994-03-11 1995-07-25 Eastman Kodak Company Multilayer magnetooptic recording media

Also Published As

Publication number Publication date
EP0674310A1 (de) 1995-09-27
EP0674310B1 (de) 2000-07-05
US5730846A (en) 1998-03-24
DE69517726T2 (de) 2000-12-07
JP2912154B2 (ja) 1999-06-28
US5635309A (en) 1997-06-03
JPH07262630A (ja) 1995-10-13
TW303455B (de) 1997-04-21

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Legal Events

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