DE69229776T2 - Magnetooptische aufzeichnungsmedien - Google Patents

Magnetooptische aufzeichnungsmedien

Info

Publication number
DE69229776T2
DE69229776T2 DE69229776T DE69229776T DE69229776T2 DE 69229776 T2 DE69229776 T2 DE 69229776T2 DE 69229776 T DE69229776 T DE 69229776T DE 69229776 T DE69229776 T DE 69229776T DE 69229776 T2 DE69229776 T2 DE 69229776T2
Authority
DE
Germany
Prior art keywords
recording media
magnetooptic recording
magnetooptic
media
recording
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
DE69229776T
Other languages
English (en)
Other versions
DE69229776D1 (de
Inventor
Hiromu Seiko Epson Co Miyazawa
Shoji Seiko Epson Corp Hoshina
Satoshi Seiko Epso Shimokawato
Masaaki Seiko Epson C Ichikawa
Masaya Seiko Epson Corp Ishida
Takeo Seiko Epson Corpo Kawase
Toshiaki Seiko Epson Mikoshiba
Satoshi Seiko Epson Co Nebashi
Tatsuya Seiko Epson Co Shimoda
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.)
Intellectual Ventures Fund 83 LLC
Original Assignee
Seiko Epson 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 Seiko Epson Corp filed Critical Seiko Epson Corp
Publication of DE69229776D1 publication Critical patent/DE69229776D1/de
Application granted granted Critical
Publication of DE69229776T2 publication Critical patent/DE69229776T2/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
    • 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
    • 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
    • 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
    • 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
    • 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
DE69229776T 1991-11-22 1992-11-20 Magnetooptische aufzeichnungsmedien Expired - Lifetime DE69229776T2 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP30758491 1991-11-22
JP30758291 1991-11-22
JP30758391 1991-11-22
JP30758091 1991-11-22
JP9659792 1992-04-16
PCT/JP1992/001528 WO1993010530A1 (en) 1991-11-22 1992-11-20 Magnetooptical recording media

Publications (2)

Publication Number Publication Date
DE69229776D1 DE69229776D1 (de) 1999-09-16
DE69229776T2 true DE69229776T2 (de) 2000-03-09

Family

ID=27525801

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69229776T Expired - Lifetime DE69229776T2 (de) 1991-11-22 1992-11-20 Magnetooptische aufzeichnungsmedien

Country Status (5)

Country Link
US (3) US5648161A (de)
EP (1) EP0568706B1 (de)
JP (1) JP3199179B2 (de)
DE (1) DE69229776T2 (de)
WO (1) WO1993010530A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69130441T2 (de) * 1990-08-07 1999-04-08 Hitachi Maxell Magnetooptischer Aufzeichnungsträger
JPH10134437A (ja) * 1996-10-31 1998-05-22 Sony Corp 光磁気記録媒体の製造方法
TW372314B (en) 1996-11-25 1999-10-21 Hitachi Maxell Data recording medium and data regeneration apparatus thereof
JP3679593B2 (ja) * 1998-01-28 2005-08-03 キヤノン株式会社 磁性薄膜素子および磁性薄膜メモリ素子およびその記録再生方法
US6482137B2 (en) 2000-11-30 2002-11-19 Brett C. Walker Inertia exercise machine
JP2002352484A (ja) * 2001-05-25 2002-12-06 Fujitsu Ltd 光磁気記録媒体

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH554064A (de) * 1972-03-17 1974-09-13 Siemens Ag Drosselspule.
US4641115A (en) * 1984-06-04 1987-02-03 Texscan Corporation Radio frequency chokes having two windings and means for dampening parasitic resonances
JPH0782670B2 (ja) * 1985-07-12 1995-09-06 株式会社日立製作所 光磁気記録媒体
JPS63237238A (ja) * 1987-03-26 1988-10-03 Canon Inc 光磁気記録媒体および光磁気記録方法
EP0258978B1 (de) * 1986-07-08 1998-10-07 Canon Kabushiki Kaisha Magnetoptisches Aufzeichnungsmedium mit der Möglichkeit des Überschreibens mit zwei oder mehr Magnetschichten und dieses Medium verwendende Aufzeichnungsmethode
JPS6348636A (ja) * 1986-08-14 1988-03-01 Seiko Epson Corp 光磁気記録媒体
AU600576B2 (en) * 1987-04-24 1990-08-16 Sony Corporation Thermomagnetic recording method applying power modulated laser on a magnetically coupled multi-layer structure of perpendicular anisotropy magnetic film
JPS63316340A (ja) * 1987-06-18 1988-12-23 Seiko Epson Corp 光磁気記録媒体
JPS63317945A (ja) * 1987-06-19 1988-12-26 Seiko Epson Corp 光磁気記録媒体
GB8714755D0 (en) * 1987-06-24 1987-07-29 Gen Electric Filter
JPH01124131A (ja) * 1987-11-09 1989-05-17 Hitachi Ltd 光磁気記録媒体
JPH01237945A (ja) * 1988-03-18 1989-09-22 Canon Inc 光磁気記録媒体
JP2685888B2 (ja) * 1989-04-07 1997-12-03 シャープ株式会社 磁気光学記録媒体
US5032808A (en) * 1989-07-21 1991-07-16 Prabhakara Reddy R.F. choke for CATV system
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
JPH04192736A (ja) * 1990-11-26 1992-07-10 Matsushita Electric Ind Co Ltd 暗号化装置
JP2712829B2 (ja) * 1990-11-26 1998-02-16 三菱電機株式会社 光磁気記録媒体
JPH04310645A (ja) * 1991-04-08 1992-11-02 Fujitsu Ltd 光磁気記録媒体
US5179334A (en) * 1991-10-18 1993-01-12 Regal Technologies Ltd. Power passing inductor capable of operation at frequencies higher than 900 MHz

Also Published As

Publication number Publication date
EP0568706A1 (de) 1993-11-10
JP3199179B2 (ja) 2001-08-13
EP0568706A4 (en) 1994-07-27
US5648161A (en) 1997-07-15
US5843570A (en) 1998-12-01
WO1993010530A1 (en) 1993-05-27
US5792571A (en) 1998-08-11
EP0568706B1 (de) 1999-08-11
DE69229776D1 (de) 1999-09-16

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: DERZEIT KEIN VERTRETER BESTELLT

8327 Change in the person/name/address of the patent owner

Owner name: BACETILOS APPLICATIONS LLC, WILMINGTON, DEL., US