FR2547445B1 - Support d'enregistrement magneto-optique - Google Patents

Support d'enregistrement magneto-optique

Info

Publication number
FR2547445B1
FR2547445B1 FR8408861A FR8408861A FR2547445B1 FR 2547445 B1 FR2547445 B1 FR 2547445B1 FR 8408861 A FR8408861 A FR 8408861A FR 8408861 A FR8408861 A FR 8408861A FR 2547445 B1 FR2547445 B1 FR 2547445B1
Authority
FR
France
Prior art keywords
magneto
recording medium
optical recording
optical
medium
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
Application number
FR8408861A
Other languages
English (en)
Other versions
FR2547445A1 (fr
Inventor
Mitsuharu Sawamura
Susumu Ito
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Publication of FR2547445A1 publication Critical patent/FR2547445A1/fr
Application granted granted Critical
Publication of FR2547445B1 publication Critical patent/FR2547445B1/fr
Expired 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
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/261—In terms of molecular thickness or light wave length
FR8408861A 1983-06-07 1984-06-06 Support d'enregistrement magneto-optique Expired FR2547445B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58100247A JPS59227056A (ja) 1983-06-07 1983-06-07 光磁気記録媒体

Publications (2)

Publication Number Publication Date
FR2547445A1 FR2547445A1 (fr) 1984-12-14
FR2547445B1 true FR2547445B1 (fr) 1988-11-25

Family

ID=14268904

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8408861A Expired FR2547445B1 (fr) 1983-06-07 1984-06-06 Support d'enregistrement magneto-optique

Country Status (5)

Country Link
US (1) US4637953A (fr)
JP (1) JPS59227056A (fr)
DE (1) DE3421077A1 (fr)
FR (1) FR2547445B1 (fr)
GB (1) GB2143689B (fr)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4801499A (en) * 1985-01-24 1989-01-31 Seiko Epson Corporation Optical recording medium
JPH0673197B2 (ja) * 1985-02-25 1994-09-14 株式会社東芝 光磁気記録媒体とその製造方法
EP0210405B1 (fr) * 1985-06-18 1992-08-26 Daicel Chemical Industries, Ltd. Support d'enregistrement pour information de haute densité
DE3677078D1 (de) * 1985-07-10 1991-02-28 Mitsubishi Chem Ind Magnetooptischer traeger.
JPS6278501A (ja) * 1985-10-02 1987-04-10 Hamamatsu Photonics Kk 反射防止膜をもつ光学装置
EP0239390A3 (fr) * 1986-03-27 1989-04-26 Canon Kabushiki Kaisha Moyen d'enregistrement optomagnétique
EP0324853B1 (fr) * 1986-05-30 1992-05-06 Sumitomo Metal Mining Company Limited Disque magneto-optique
US4849304A (en) * 1986-12-17 1989-07-18 Tdk Corporation Optical recording medium
US4902584A (en) * 1986-12-25 1990-02-20 Tdk Corporation Optical recording medium
DE3702480A1 (de) * 1987-01-28 1988-08-11 Philips Patentverwaltung Verfahren zur herstellung eines magneto-optischen speichers
DE3716736A1 (de) * 1987-05-19 1988-12-01 Basf Ag Flaechenfoermiges, mehrschichtiges, magneto-optisches aufzeichnungsmaterial
JP2547768B2 (ja) * 1987-05-19 1996-10-23 キヤノン株式会社 光学的磁気記録媒体
JPH01201848A (ja) * 1988-02-05 1989-08-14 Fuji Photo Film Co Ltd 磁気光学薄膜
JPH0413251A (ja) * 1990-04-28 1992-01-17 Kyocera Corp 光磁気記録素子及びその製造方法
EP0458604B1 (fr) * 1990-05-22 1997-08-27 Canon Kabushiki Kaisha Méthode et appareil pour l'enregistrement et la reproduction des informations dans des cellules utilisant des interférences multiples
DE69111723T2 (de) * 1990-09-14 1996-04-11 Komag Inc Quasiamorphe oder amorphe dielektrische Schicht aus Zirkoniumdioxid für optische oder magnetooptische Speichermedien.
GB9126207D0 (en) * 1991-12-10 1992-02-12 Nat Res Dev Magnetostrictive material
JP2611093B2 (ja) * 1992-07-07 1997-05-21 ホーヤ株式会社 硬化膜を有する光学部材
KR0170477B1 (ko) * 1995-12-20 1999-05-01 양승택 이중 파장 dbr을 이용한 수직 구조형의 광변조기
JPH1048421A (ja) * 1996-08-05 1998-02-20 Mitsubishi Gas Chem Co Inc ファラデー回転子
JP2001110635A (ja) 1999-10-04 2001-04-20 Minebea Co Ltd 磁気光学体及びその製造方法
US7042810B2 (en) * 2000-01-31 2006-05-09 Kabushiki Kaisha Toshiba Thermally-assisted magnetic recording head, method of manufacturing the same, and thermally-assisted magnetic recording apparatus
US20130070327A1 (en) * 2010-05-11 2013-03-21 Panorama Synergy Ltd. Multi-layer magneto-optic structure

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3472575A (en) * 1966-11-04 1969-10-14 Ampex Magnetic storage medium for enhancing magneto-optic readout
US3650601A (en) * 1970-11-19 1972-03-21 Du Pont Magneto-optic device having alternate layer film structure
DE2303520A1 (de) * 1972-06-27 1974-01-10 Hermsdorf Keramik Veb Anordnung zum auslesen von informationen aus magnetischen speichermedien
JPS56156943A (en) 1980-05-07 1981-12-03 Matsushita Electric Ind Co Ltd Optical disk
US4414650A (en) * 1980-06-23 1983-11-08 Sharp Kabushiki Kaisha Magneto-optic memory element
CA1185013A (fr) * 1981-01-14 1985-04-02 Kenji Ohta Support de memoire magneto-optique
US4525028A (en) * 1981-04-23 1985-06-25 Raytheon Company Enhanced magnetic mirror
US4639816A (en) * 1982-09-27 1987-01-27 Canon Kabushiki Kaisha Magneto-optical recording medium

Also Published As

Publication number Publication date
DE3421077C2 (fr) 1989-06-29
US4637953A (en) 1987-01-20
FR2547445A1 (fr) 1984-12-14
DE3421077A1 (de) 1984-12-13
GB2143689A (en) 1985-02-13
JPS59227056A (ja) 1984-12-20
GB8414420D0 (en) 1984-07-11
GB2143689B (en) 1986-11-12

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