DE69322222D1 - Magnetooptischer Aufzeichnungsträger - Google Patents

Magnetooptischer Aufzeichnungsträger

Info

Publication number
DE69322222D1
DE69322222D1 DE69322222T DE69322222T DE69322222D1 DE 69322222 D1 DE69322222 D1 DE 69322222D1 DE 69322222 T DE69322222 T DE 69322222T DE 69322222 T DE69322222 T DE 69322222T DE 69322222 D1 DE69322222 D1 DE 69322222D1
Authority
DE
Germany
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 - Fee Related
Application number
DE69322222T
Other languages
English (en)
Other versions
DE69322222T2 (de
Inventor
Yukio Watanabe
Shinichi Tachibana
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
Application granted granted Critical
Publication of DE69322222D1 publication Critical patent/DE69322222D1/de
Publication of DE69322222T2 publication Critical patent/DE69322222T2/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
    • 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
    • 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
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
DE69322222T 1992-09-18 1993-09-16 Magnetooptischer Aufzeichnungsträger Expired - Fee Related DE69322222T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24977292 1992-09-18

Publications (2)

Publication Number Publication Date
DE69322222D1 true DE69322222D1 (de) 1999-01-07
DE69322222T2 DE69322222T2 (de) 1999-05-12

Family

ID=17198001

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69322222T Expired - Fee Related DE69322222T2 (de) 1992-09-18 1993-09-16 Magnetooptischer Aufzeichnungsträger

Country Status (3)

Country Link
US (1) US5576087A (de)
EP (1) EP0588647B1 (de)
DE (1) DE69322222T2 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07176103A (ja) * 1993-12-20 1995-07-14 Canon Inc 光磁気記録再生システムならびにこれに用いる磁気ヘッド及び光磁気記録媒体
US6177175B1 (en) * 1997-10-16 2001-01-23 Canon Kabushiki Kaisha Magneto-optical medium utilizing domain wall displacement
US6238763B1 (en) 1998-01-06 2001-05-29 Imation Corp. Rewritable optical data storage disk having enhanced flatness
US5972461A (en) * 1998-01-06 1999-10-26 Imation Corp. Rewritable optical data storage disk having enhanced flatness
US6268073B1 (en) 1998-11-09 2001-07-31 Seagate Technology Llc Flash layer overcoat for magnetically-induced super resolution magneto-optical media
US6355342B1 (en) 1998-11-18 2002-03-12 Seagate Technology Llc Flash layer overcoat for high density multilayer magneto-optical media
US6381200B1 (en) 1998-11-18 2002-04-30 Seagate Technology Llc Flash layer overcoat for first surface magneto-optical media
US6324131B1 (en) 1999-01-04 2001-11-27 Seagate Technology Llc Low glide magneto-optical recording medium

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51107121A (ja) * 1975-03-17 1976-09-22 Yoshifumi Sakurai Hikarijikikirokuhoshiki
JPS6472319A (en) * 1987-09-11 1989-03-17 Hitachi Maxell Magnetic recording medium
DE3802273A1 (de) * 1988-01-27 1989-08-03 Basf Ag 3,3-dimethyl-hex-5-en-2-onderivate, verfahren zu ihrer herstellung und ihre verwendung
US4923766A (en) * 1988-03-29 1990-05-08 Canon Kabushiki Kaisha Process for preparing magnetic recording
US5102709A (en) * 1989-04-27 1992-04-07 Canon Kabushiki Kaisha Optical recording medium and process for production thereof
JP2632214B2 (ja) * 1989-06-08 1997-07-23 富士写真フイルム株式会社 磁気記録媒体
JPH0366079A (ja) * 1989-08-04 1991-03-20 Matsushita Electric Ind Co Ltd 光磁気ディスク用フライングヘッド
JPH03209628A (ja) * 1990-01-12 1991-09-12 Fuji Electric Co Ltd 磁気記録媒体およびその製造方法
JPH0464936A (ja) * 1990-07-04 1992-02-28 Canon Inc 光学的記録媒体
JP2861306B2 (ja) * 1990-07-10 1999-02-24 ソニー株式会社 磁気記録媒体
JPH04176037A (ja) * 1990-11-08 1992-06-23 Nec Corp 光磁気記録媒体
JPH04184730A (ja) * 1990-11-20 1992-07-01 Kuraray Co Ltd 光記録媒体およびその製造に用いるスタンパー
JPH04195746A (ja) * 1990-11-24 1992-07-15 Sony Corp 光磁気記録媒体
JP3241371B2 (ja) * 1990-11-26 2001-12-25 ソニー株式会社 光磁気記録媒体の製造方法

Also Published As

Publication number Publication date
US5576087A (en) 1996-11-19
EP0588647A1 (de) 1994-03-23
DE69322222T2 (de) 1999-05-12
EP0588647B1 (de) 1998-11-25

Similar Documents

Publication Publication Date Title
DE69226041D1 (de) Magneto-optisches Aufzeichnungsmedium
DE69323162D1 (de) Magnetooptischer Aufzeichnungsträger
DE69417806T2 (de) Magnetooptischer Aufzeichnungsträger
DE69115426D1 (de) Magneto-optisches Aufzeichnungsmedium
DE69421234T2 (de) Magnetooptisches Aufzeichnungsmedium
DE69325352T2 (de) Magnetooptisches Aufzeichnungsmedium
DE69115963D1 (de) Magnetooptisches Aufzeichnungsmedium
DE69222988T2 (de) Magnetooptisches Aufzeichnungsmedium
DE69122977T2 (de) Magnetooptisches Aufzeichnungsmedium
DE69130441D1 (de) Magnetooptischer Aufzeichnungsträger
DE69322222T2 (de) Magnetooptischer Aufzeichnungsträger
DE69421299D1 (de) Magneto-optisches Aufzeichnungsmedium
DE69223468D1 (de) Magnetooptisches Aufzeichnungsmedium
DE69125919T2 (de) Magneto-optisches Aufzeichnungsmedium
DE69217302T2 (de) Magneto-optisches Aufzeichnungsmedium
DE69320751D1 (de) Magnetooptischer Aufzeichnungsträger
DE59208108D1 (de) Magnetooptisches Aufzeichnungsmedium
DE69224947D1 (de) Magnetooptisches Aufzeichnungsmedium
DE69229611D1 (de) Magneto-optisches Aufzeichnungsmedium
DE69207804T2 (de) Magnetooptischer Aufzeichnungsträger
DE69423404D1 (de) Magnetooptisches Aufzeichnungsmedium
DE69311834D1 (de) Magnetisches Aufzeichnungsmedium
DE69121737D1 (de) Magneto-optisches Aufzeichnungsmedium
DE69123225T2 (de) Magnetooptischer Aufzeichnungsträger
DE69125257T2 (de) Magnetooptischer Aufzeichnungsträger

Legal Events

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