DE69325352D1 - Magnetooptisches Aufzeichnungsmedium - Google Patents

Magnetooptisches Aufzeichnungsmedium

Info

Publication number
DE69325352D1
DE69325352D1 DE69325352T DE69325352T DE69325352D1 DE 69325352 D1 DE69325352 D1 DE 69325352D1 DE 69325352 T DE69325352 T DE 69325352T DE 69325352 T DE69325352 T DE 69325352T DE 69325352 D1 DE69325352 D1 DE 69325352D1
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 - Lifetime
Application number
DE69325352T
Other languages
English (en)
Other versions
DE69325352T2 (de
Inventor
Junji Hirokane
Hiroyuki Katayama
Kenji Ohta
Yoshiteru Murakami
Akira Takahashi
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
Publication of DE69325352D1 publication Critical patent/DE69325352D1/de
Application granted granted Critical
Publication of DE69325352T2 publication Critical patent/DE69325352T2/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
    • 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
    • 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
DE69325352T 1992-12-10 1993-12-08 Magnetooptisches Aufzeichnungsmedium Expired - Lifetime DE69325352T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4330626A JP2999895B2 (ja) 1992-12-10 1992-12-10 光磁気記録媒体

Publications (2)

Publication Number Publication Date
DE69325352D1 true DE69325352D1 (de) 1999-07-22
DE69325352T2 DE69325352T2 (de) 1999-11-25

Family

ID=18234771

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69325352T Expired - Lifetime DE69325352T2 (de) 1992-12-10 1993-12-08 Magnetooptisches Aufzeichnungsmedium

Country Status (5)

Country Link
US (1) US5705286A (de)
EP (1) EP0604065B1 (de)
JP (1) JP2999895B2 (de)
KR (1) KR940016017A (de)
DE (1) DE69325352T2 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2957367B2 (ja) * 1993-01-07 1999-10-04 シャープ株式会社 光磁気記録媒体およびその記録方法と記録再生方法
JP3072812B2 (ja) * 1993-04-08 2000-08-07 キヤノン株式会社 光磁気記録媒体及び該媒体の情報再生方法
JP2809991B2 (ja) 1994-01-14 1998-10-15 富士通株式会社 光磁気記録媒体及び該媒体に記録された情報の再生方法
JP3088619B2 (ja) * 1994-01-17 2000-09-18 富士通株式会社 光磁気記録媒体及び該媒体に記録された情報の再生方法
CA2142767C (en) * 1994-02-21 1998-11-17 Naoki Nishimura Magneto-optical recording medium, and information reproducing method using the medium
EP0686970A3 (de) * 1994-06-10 1996-07-24 Canon Kk Magneto-optisches Aufzeichnungsmedium und Wiedergabemethode dafür
JP3164975B2 (ja) * 1994-08-24 2001-05-14 キヤノン株式会社 光磁気記録媒体及び該媒体を用いた情報再生方法
JP3169790B2 (ja) * 1995-03-27 2001-05-28 シャープ株式会社 光磁気記録媒体及びその記録再生方法
JP3400251B2 (ja) * 1996-07-30 2003-04-28 シャープ株式会社 光磁気記録媒体の再生方法及び光磁気記録媒体
JPH10172190A (ja) * 1996-12-09 1998-06-26 Sharp Corp 光磁気記録媒体及びその製造方法
JP2000057646A (ja) * 1998-08-07 2000-02-25 Sony Corp 光磁気記録媒体及び光磁気記録再生装置
CN1287663A (zh) 1998-08-31 2001-03-14 三洋电机株式会社 光磁记录媒体
US6590836B1 (en) * 1999-09-29 2003-07-08 Sanyo Electric Co., Ltd. Magneto optical recording medium capable of preventing a reproduction layer from having a degraded characteristic
JP2001222843A (ja) * 2000-02-07 2001-08-17 Sony Corp 光磁気記録媒体
JP2005050400A (ja) * 2003-07-30 2005-02-24 Canon Inc 光磁気記録媒体
US10510214B2 (en) * 2005-07-08 2019-12-17 Cfph, Llc System and method for peer-to-peer wireless gaming

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4126494A (en) * 1975-10-20 1978-11-21 Kokusai Denshin Denwa Kabushiki Kaisha Magnetic transfer record film
JPS52109193A (en) * 1976-03-11 1977-09-13 Kokusai Denshin Denwa Co Ltd Magnetoooptic memory medium
JPS5873746A (ja) * 1981-10-27 1983-05-04 Kokusai Denshin Denwa Co Ltd <Kdd> 光磁気記録媒体
JP2880723B2 (ja) * 1989-03-15 1999-04-12 ソニー株式会社 光磁気ディスク
JP2969963B2 (ja) * 1990-12-28 1999-11-02 ソニー株式会社 光磁気記録媒体における信号再生方法
JP3111479B2 (ja) * 1991-02-08 2000-11-20 ソニー株式会社 光磁気記録媒体
CA2060549C (en) * 1991-02-08 2002-08-13 Masumi Ohta Magneto-optical recording medium
CA2060547C (en) * 1991-02-08 2002-04-23 Masumi Ohta System and method of reproducing signals recorded on a magneto-optic recording medium
JP2839783B2 (ja) * 1991-04-17 1998-12-16 シャープ株式会社 光磁気記録媒体、再生装置及び再生方法
CA2067945C (en) * 1991-05-16 2001-09-04 Shintaro Tanaka Magneto-optical recording medium
JP2812817B2 (ja) * 1991-07-08 1998-10-22 シャープ株式会社 光磁気記録媒体

Also Published As

Publication number Publication date
JPH06180874A (ja) 1994-06-28
KR940016017A (ko) 1994-07-22
EP0604065A3 (de) 1995-04-05
EP0604065A2 (de) 1994-06-29
JP2999895B2 (ja) 2000-01-17
EP0604065B1 (de) 1999-06-16
US5705286A (en) 1998-01-06
DE69325352T2 (de) 1999-11-25

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition