DE69022841T2 - Magneto-optische Speichermediumstrukturen. - Google Patents

Magneto-optische Speichermediumstrukturen.

Info

Publication number
DE69022841T2
DE69022841T2 DE69022841T DE69022841T DE69022841T2 DE 69022841 T2 DE69022841 T2 DE 69022841T2 DE 69022841 T DE69022841 T DE 69022841T DE 69022841 T DE69022841 T DE 69022841T DE 69022841 T2 DE69022841 T2 DE 69022841T2
Authority
DE
Germany
Prior art keywords
magneto
storage medium
optical storage
medium structures
sio2
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
DE69022841T
Other languages
English (en)
Other versions
DE69022841D1 (de
Inventor
Christopher Vincent Jahnes
Fletcher Jones
Joseph Skinner Logan
Michael Allen Russak
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of DE69022841D1 publication Critical patent/DE69022841D1/de
Application granted granted Critical
Publication of DE69022841T2 publication Critical patent/DE69022841T2/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
    • 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

Landscapes

  • Glass Compositions (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Holo Graphy (AREA)
DE69022841T 1990-01-31 1990-12-07 Magneto-optische Speichermediumstrukturen. Expired - Fee Related DE69022841T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US47301390A 1990-01-31 1990-01-31

Publications (2)

Publication Number Publication Date
DE69022841D1 DE69022841D1 (de) 1995-11-09
DE69022841T2 true DE69022841T2 (de) 1996-05-30

Family

ID=23877828

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69022841T Expired - Fee Related DE69022841T2 (de) 1990-01-31 1990-12-07 Magneto-optische Speichermediumstrukturen.

Country Status (6)

Country Link
US (1) US6214482B1 (de)
EP (1) EP0439737B1 (de)
JP (1) JP2558011B2 (de)
AT (1) ATE128783T1 (de)
CA (1) CA2032866C (de)
DE (1) DE69022841T2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07169127A (ja) * 1993-10-01 1995-07-04 Minnesota Mining & Mfg Co <3M> 非晶質希土類酸化物
US6243350B1 (en) * 1996-05-01 2001-06-05 Terastor Corporation Optical storage systems with flying optical heads for near-field recording and reading
US6579425B2 (en) * 2001-07-16 2003-06-17 Sharp Laboratories Of America, Inc. System and method for forming base coat and thin film layers by sequential sputter depositing
US7706103B2 (en) 2006-07-25 2010-04-27 Seagate Technology Llc Electric field assisted writing using a multiferroic recording media

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4268369A (en) 1977-07-18 1981-05-19 Ampex Corporation Process of making silicon dioxide films for use as wear resistant coatings in video and digital magnetic recording
JPS5761553A (en) * 1980-09-25 1982-04-14 Toray Industries Laminated film
US4810868A (en) * 1985-08-06 1989-03-07 Drexler Technology Corporation Frasable optical wallet-size data card
US4569881A (en) 1983-05-17 1986-02-11 Minnesota Mining And Manufacturing Company Multi-layer amorphous magneto optical recording medium
JPS6042247A (ja) * 1983-08-16 1985-03-06 Asahi Glass Co Ltd 低膨張性ガラス
CA1224270A (en) * 1983-09-16 1987-07-14 Junji Hirokane Magneto-optic memory element
US4680742A (en) * 1984-07-07 1987-07-14 Kyocera Corporation Magneto-optical recording element
JPS6134747A (ja) * 1984-07-27 1986-02-19 Hitachi Ltd 光磁気多層膜媒体
JPS6150236A (ja) * 1984-08-18 1986-03-12 Canon Inc 磁気記録媒体の製造方法
JPS61131224A (ja) * 1984-11-30 1986-06-18 Toshiba Corp 磁気記録媒体
DE3686530T2 (de) * 1985-06-18 1993-04-08 Daicel Chem Aufzeichnungstraeger, versehen mit hochdichter information.
JPS621112A (ja) 1985-06-26 1987-01-07 Hitachi Maxell Ltd 磁気記録媒体
JPH0777044B2 (ja) * 1985-07-24 1995-08-16 ダイセル化学工業株式会社 光磁気デイスク
JPS62175949A (ja) * 1985-10-15 1987-08-01 Nippon Kogaku Kk <Nikon> 複合酸化物で保護された光磁気記録媒体
US4800112A (en) * 1986-04-10 1989-01-24 Seiko Epson Corporation Optical recording medium
JPS62267944A (ja) * 1986-05-16 1987-11-20 Hitachi Ltd 磁気記録媒体
JPS62289946A (ja) * 1986-06-09 1987-12-16 Konica Corp 光磁気記録媒体
JPS6352351A (ja) * 1986-08-22 1988-03-05 Nippon Telegr & Teleph Corp <Ntt> 保護膜部材及びそれを用いた光磁気デイスク媒体
US4849304A (en) * 1986-12-17 1989-07-18 Tdk Corporation Optical recording medium
JP2523291B2 (ja) * 1986-12-17 1996-08-07 ティーディーケイ株式会社 光記録媒体
JPS63171455A (ja) * 1987-01-09 1988-07-15 Toyobo Co Ltd 光磁気記録媒体用保護膜
JP2509291B2 (ja) * 1988-01-21 1996-06-19 日本板硝子株式会社 ガラス基板
JPH02226531A (ja) * 1989-02-27 1990-09-10 Hitachi Ltd 光デイスクの構造
KR900008471A (ko) * 1988-11-07 1990-06-04 미다 가쓰시게 광자기 디스크
US5192626A (en) * 1988-12-14 1993-03-09 Teijin Limited Optical recording medium

Also Published As

Publication number Publication date
EP0439737A1 (de) 1991-08-07
CA2032866C (en) 1994-09-06
EP0439737B1 (de) 1995-10-04
CA2032866A1 (en) 1991-08-01
US6214482B1 (en) 2001-04-10
JPH03242843A (ja) 1991-10-29
DE69022841D1 (de) 1995-11-09
JP2558011B2 (ja) 1996-11-27
ATE128783T1 (de) 1995-10-15

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Legal Events

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