DE3883310D1 - Magnetooptische datentraeger. - Google Patents

Magnetooptische datentraeger.

Info

Publication number
DE3883310D1
DE3883310D1 DE8888305842T DE3883310T DE3883310D1 DE 3883310 D1 DE3883310 D1 DE 3883310D1 DE 8888305842 T DE8888305842 T DE 8888305842T DE 3883310 T DE3883310 T DE 3883310T DE 3883310 D1 DE3883310 D1 DE 3883310D1
Authority
DE
Germany
Prior art keywords
data carriers
magnetooptic
magnetooptic data
carriers
data
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 - Fee Related
Application number
DE8888305842T
Other languages
English (en)
Other versions
DE3883310T2 (de
Inventor
Yoshimitsu Kobayashi
Yoshiyuki Kisaka
Akihiko Ohya
Toshifumi Kawano
Masao Fujigaoka-Ryo Komatsu
Yuki Haitsu-Amano Tanaka
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.)
Mitsubishi Kasei Corp
Original Assignee
Mitsubishi Kasei 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
Priority claimed from JP62158918A external-priority patent/JPS644938A/ja
Priority claimed from JP62329246A external-priority patent/JPH01171140A/ja
Priority claimed from JP62329248A external-priority patent/JPH01171142A/ja
Priority claimed from JP62329247A external-priority patent/JP2583255B2/ja
Priority claimed from JP62334952A external-priority patent/JPH01173454A/ja
Priority claimed from JP62334951A external-priority patent/JPH01173453A/ja
Priority claimed from JP62334953A external-priority patent/JPH01173455A/ja
Priority claimed from JP63039289A external-priority patent/JPH01213849A/ja
Priority claimed from JP63077528A external-priority patent/JPH01251354A/ja
Priority claimed from JP63077524A external-priority patent/JPH01251351A/ja
Priority claimed from JP63077526A external-priority patent/JPH01251352A/ja
Priority claimed from JP63077527A external-priority patent/JPH01251353A/ja
Priority claimed from JP63118643A external-priority patent/JP2506935B2/ja
Priority claimed from JP63118642A external-priority patent/JPH01287847A/ja
Application filed by Mitsubishi Kasei Corp filed Critical Mitsubishi Kasei Corp
Publication of DE3883310D1 publication Critical patent/DE3883310D1/de
Application granted granted Critical
Publication of DE3883310T2 publication Critical patent/DE3883310T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • G11B11/10591—Details for improving write-in properties, e.g. Curie-point temperature
    • 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
DE88305842T 1987-06-26 1988-06-24 Magnetooptische Datenträger. Expired - Fee Related DE3883310T2 (de)

Applications Claiming Priority (14)

Application Number Priority Date Filing Date Title
JP62158918A JPS644938A (en) 1987-06-26 1987-06-26 Magneto-optical recording medium
JP62329247A JP2583255B2 (ja) 1987-12-25 1987-12-25 光磁気記録媒体
JP62329248A JPH01171142A (ja) 1987-12-25 1987-12-25 光磁気記録媒体
JP62329246A JPH01171140A (ja) 1987-12-25 1987-12-25 光磁気記録媒体
JP62334951A JPH01173453A (ja) 1987-12-28 1987-12-28 光磁気記録媒体
JP62334953A JPH01173455A (ja) 1987-12-28 1987-12-28 光磁気記録媒体
JP62334952A JPH01173454A (ja) 1987-12-28 1987-12-28 光磁気記録媒体
JP63039289A JPH01213849A (ja) 1988-02-22 1988-02-22 光磁気記録媒体
JP63077528A JPH01251354A (ja) 1988-03-30 1988-03-30 光磁気記録媒体
JP63077524A JPH01251351A (ja) 1988-03-30 1988-03-30 光磁気記録媒体
JP63077526A JPH01251352A (ja) 1988-03-30 1988-03-30 光磁気記録媒体
JP63077527A JPH01251353A (ja) 1988-03-30 1988-03-30 光磁気記録媒体
JP63118643A JP2506935B2 (ja) 1988-05-16 1988-05-16 光磁気記録媒体
JP63118642A JPH01287847A (ja) 1988-05-16 1988-05-16 光磁気記録媒体

Publications (2)

Publication Number Publication Date
DE3883310D1 true DE3883310D1 (de) 1993-09-23
DE3883310T2 DE3883310T2 (de) 1993-12-09

Family

ID=27584819

Family Applications (1)

Application Number Title Priority Date Filing Date
DE88305842T Expired - Fee Related DE3883310T2 (de) 1987-06-26 1988-06-24 Magnetooptische Datenträger.

Country Status (4)

Country Link
EP (1) EP0296888B1 (de)
KR (1) KR960010928B1 (de)
CA (1) CA1324213C (de)
DE (1) DE3883310T2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0350010B1 (de) * 1988-07-07 1993-09-29 Oki Electric Industry Co., Ltd. Magneto-optisches Speichermedium
JPH02223040A (ja) * 1988-11-04 1990-09-05 Fuji Photo Film Co Ltd 光磁気記録媒体
DE69031802T2 (de) * 1990-08-17 1998-06-25 Ibm Verfahren zur Herstellung gerillter Substrate
EP0531808B1 (de) * 1991-09-09 1997-02-05 Shin-Etsu Chemical Co., Ltd. Magneto-optisches Aufzeichnungsmedium
JP2786360B2 (ja) * 1991-12-05 1998-08-13 シャープ株式会社 光磁気ディスク

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5720933A (en) * 1980-07-14 1982-02-03 Toshiba Corp Information recording carrier
JPS6057553A (ja) * 1983-06-01 1985-04-03 バロ−ス・コ−ポレ−シヨン 光学メモリデイスクとその製造方法
US4675767A (en) * 1983-12-12 1987-06-23 Canon Kabushiki Kaisha Opto-magnetic recording medium
JPS60209946A (ja) * 1984-04-02 1985-10-22 Nec Corp 光磁気記録媒体

Also Published As

Publication number Publication date
EP0296888A3 (en) 1990-03-14
KR960010928B1 (ko) 1996-08-13
DE3883310T2 (de) 1993-12-09
CA1324213C (en) 1993-11-09
EP0296888B1 (de) 1993-08-18
EP0296888A2 (de) 1988-12-28
KR890001038A (ko) 1989-03-18

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee