HK24096A - Magneto-optical recording medium - Google Patents

Magneto-optical recording medium

Info

Publication number
HK24096A
HK24096A HK24096A HK24096A HK24096A HK 24096 A HK24096 A HK 24096A HK 24096 A HK24096 A HK 24096A HK 24096 A HK24096 A HK 24096A HK 24096 A HK24096 A HK 24096A
Authority
HK
Hong Kong
Prior art keywords
magneto
recording medium
optical recording
optical
medium
Prior art date
Application number
HK24096A
Other languages
English (en)
Inventor
Yoshimine Kato
Teruhisa Shimizu
Shinji Takayama
Hiroshi Tanaka
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Publication of HK24096A publication Critical patent/HK24096A/xx

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
    • G11B11/10589—Details
    • 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
    • Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
    • Y10T428/264—Up to 3 mils
    • Y10T428/265—1 mil or less
HK24096A 1989-09-20 1996-02-08 Magneto-optical recording medium HK24096A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1242422A JP2646398B2 (ja) 1989-09-20 1989-09-20 光磁気記録媒体

Publications (1)

Publication Number Publication Date
HK24096A true HK24096A (en) 1996-02-16

Family

ID=17088880

Family Applications (1)

Application Number Title Priority Date Filing Date
HK24096A HK24096A (en) 1989-09-20 1996-02-08 Magneto-optical recording medium

Country Status (10)

Country Link
US (1) US5030512A (ja)
EP (1) EP0419169B1 (ja)
JP (1) JP2646398B2 (ja)
KR (1) KR930009224B1 (ja)
CN (1) CN1019242B (ja)
CA (1) CA2017300C (ja)
DE (1) DE69020992T2 (ja)
GB (1) GB9014399D0 (ja)
HK (1) HK24096A (ja)
MY (1) MY106198A (ja)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4029874A1 (de) * 1990-09-21 1992-03-26 Basf Ag Magnetooptische datenplatte mit pt-haltiger leseschicht
JPH0690976B2 (ja) * 1990-10-05 1994-11-14 インターナショナル・ビジネス・マシーンズ・コーポレーション 光磁気記録媒体
JPH06236587A (ja) * 1992-05-19 1994-08-23 Nikon Corp 再生専用型の光磁気ディスク、その再生方法 及び再生装置
JPH06309710A (ja) * 1993-04-27 1994-11-04 Nikon Corp 光磁気記録媒体
US6423430B1 (en) * 1995-07-17 2002-07-23 Samsung Electronics Co., Ltd. Magneto-optical recording medium for short wavelength
US5665465A (en) * 1995-11-06 1997-09-09 Lucent Technologies Inc. Article comprising exchange-coupled magnetic materials
JP4337209B2 (ja) * 2000-02-22 2009-09-30 日立金属株式会社 永久磁石薄膜およびその製造方法
TW560095B (en) * 2001-04-02 2003-11-01 Canon Kk Magnetoresistive element, memory element having the magnetoresistive element, and memory using the memory element
JP2003091801A (ja) * 2001-09-17 2003-03-28 Toshiba Corp 磁気記録装置及び磁気記録媒体
JP2006024732A (ja) * 2004-07-08 2006-01-26 Fujitsu Ltd 磁性膜並びにハードディスクドライブ用記録再生ヘッドおよび固体デバイス

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2150946B (en) * 1983-11-05 1987-08-19 Canon Kk Magneto-optical recording medium
JPH0619859B2 (ja) * 1984-02-16 1994-03-16 株式会社ニコン 光磁気記録媒体
JPS6124041A (ja) * 1984-07-13 1986-02-01 Canon Inc 光学的磁気記録媒体
JPH0782670B2 (ja) * 1985-07-12 1995-09-06 株式会社日立製作所 光磁気記録媒体
FR2601175B1 (fr) * 1986-04-04 1993-11-12 Seiko Epson Corp Cible de pulverisation cathodique et support d'enregistrement utilisant une telle cible.
JPS6430344A (en) * 1987-07-27 1989-02-01 Matsushita Electric Ind Co Ltd Error corrector
JPS6430345A (en) * 1987-07-27 1989-02-01 Nec Corp Synchronizing detecting circuit
JPH01124131A (ja) * 1987-11-09 1989-05-17 Hitachi Ltd 光磁気記録媒体
JPH01130344A (ja) * 1987-11-16 1989-05-23 Hitachi Ltd 光磁気記録媒体
JPH01169758A (ja) * 1987-12-24 1989-07-05 Hitachi Ltd 光磁気記録媒体
JP2561111B2 (ja) * 1988-01-28 1996-12-04 富士写真フイルム株式会社 光磁気記録媒体
JPH01237945A (ja) * 1988-03-18 1989-09-22 Canon Inc 光磁気記録媒体

Also Published As

Publication number Publication date
EP0419169B1 (en) 1995-07-19
MY106198A (en) 1995-03-31
CA2017300A1 (en) 1991-03-20
KR930009224B1 (ko) 1993-09-24
KR910006940A (ko) 1991-04-30
JPH03108144A (ja) 1991-05-08
CN1019242B (zh) 1992-11-25
DE69020992D1 (de) 1995-08-24
EP0419169A3 (en) 1992-12-16
EP0419169A2 (en) 1991-03-27
CN1050456A (zh) 1991-04-03
GB9014399D0 (en) 1990-08-22
DE69020992T2 (de) 1996-04-04
US5030512A (en) 1991-07-09
JP2646398B2 (ja) 1997-08-27
CA2017300C (en) 1994-05-17

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Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20070917