NL191807C - Magneto-optisch registratiemiddel. - Google Patents

Magneto-optisch registratiemiddel.

Info

Publication number
NL191807C
NL191807C NL8600379A NL8600379A NL191807C NL 191807 C NL191807 C NL 191807C NL 8600379 A NL8600379 A NL 8600379A NL 8600379 A NL8600379 A NL 8600379A NL 191807 C NL191807 C NL 191807C
Authority
NL
Netherlands
Prior art keywords
magneto
recording medium
optical recording
optical
medium
Prior art date
Application number
NL8600379A
Other languages
English (en)
Other versions
NL191807B (nl
NL8600379A (nl
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of NL8600379A publication Critical patent/NL8600379A/nl
Publication of NL191807B publication Critical patent/NL191807B/nl
Application granted granted Critical
Publication of NL191807C publication Critical patent/NL191807C/nl

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
    • 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
    • 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
    • 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
NL8600379A 1985-03-20 1986-02-14 Magneto-optisch registratiemiddel. NL191807C (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5442285 1985-03-20
JP60054422A JPS61214254A (ja) 1985-03-20 1985-03-20 光磁気記録材料

Publications (3)

Publication Number Publication Date
NL8600379A NL8600379A (nl) 1986-10-16
NL191807B NL191807B (nl) 1996-04-01
NL191807C true NL191807C (nl) 1996-08-02

Family

ID=12970271

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8600379A NL191807C (nl) 1985-03-20 1986-02-14 Magneto-optisch registratiemiddel.

Country Status (4)

Country Link
JP (1) JPS61214254A (nl)
KR (1) KR940008408B1 (nl)
DE (1) DE3604642A1 (nl)
NL (1) NL191807C (nl)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2601796B2 (ja) * 1985-12-05 1997-04-16 日立マクセル株式会社 光磁気記録媒体
JPH0782670B2 (ja) * 1985-07-12 1995-09-06 株式会社日立製作所 光磁気記録媒体
JPS6297153A (ja) * 1985-10-23 1987-05-06 Sumitomo Metal Mining Co Ltd 磁性薄膜記録媒体
DE3853436T2 (de) * 1987-01-14 1995-11-09 Minnesota Mining & Mfg Stabilisierter magneto-optischer Aufzeichnungsträger.
DE3912378A1 (de) * 1988-04-14 1989-10-26 Ricoh Kk Magneto-optisches aufzeichnungsmaterial
JP3130929B2 (ja) * 1990-08-10 2001-01-31 ミネソタ マイニング アンド マニュファクチャリング カンパニー 高い記憶密度と直接重ね書きケイパビリティを有する熱磁気記録システム

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7900921A (nl) * 1979-02-06 1980-08-08 Philips Nv Thermomagnetische informatiedrager en optische geheu- geninrichting voorzien van een dergelijke informatie- drager.
JPS6032331B2 (ja) * 1980-03-12 1985-07-27 ケイディディ株式会社 磁気光学記録媒体
JPS5873746A (ja) * 1981-10-27 1983-05-04 Kokusai Denshin Denwa Co Ltd <Kdd> 光磁気記録媒体
CA1206505A (en) * 1982-03-18 1986-06-24 Richard A. Phillips Immersed element protection
DE3348423C2 (de) * 1982-05-10 1994-11-17 Canon Kk Verwendung einer amorphen magnetischen quaternären GdTbFeCo-Legierung für die Herstellung einer magnetooptischen Aufzeichnungsschicht
JPS5984358A (ja) * 1982-11-04 1984-05-16 Seiko Instr & Electronics Ltd 光磁気記録媒体
DE3382791T2 (de) * 1982-12-15 1995-12-07 Sharp Kk Magneto-optischer Speicher.
JPS59178641A (ja) * 1983-03-29 1984-10-09 Kokusai Denshin Denwa Co Ltd <Kdd> 光磁気記録媒体
JPS6115308A (ja) * 1984-07-02 1986-01-23 Hitachi Ltd 光磁気記録材料
JPS6119644A (ja) * 1984-07-06 1986-01-28 Idemitsu Petrochem Co Ltd 線状低密度ポリエチレン樹脂組成物
JPS6134744A (ja) * 1984-07-25 1986-02-19 Hitachi Ltd 磁気光学記録媒体
JPS6184803A (ja) * 1984-10-03 1986-04-30 Oki Electric Ind Co Ltd 光磁気記録用材料

Also Published As

Publication number Publication date
KR860007645A (ko) 1986-10-15
JPS61214254A (ja) 1986-09-24
NL191807B (nl) 1996-04-01
DE3604642C2 (nl) 1993-02-11
NL8600379A (nl) 1986-10-16
KR940008408B1 (ko) 1994-09-14
DE3604642A1 (de) 1986-10-02

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Legal Events

Date Code Title Description
A1A A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
V1 Lapsed because of non-payment of the annual fee

Effective date: 20030901