DE69324515T2 - Magnetkopfvorrichtung und magnetooptisches Aufzeichnungs- und Wiedergabegerät - Google Patents

Magnetkopfvorrichtung und magnetooptisches Aufzeichnungs- und Wiedergabegerät

Info

Publication number
DE69324515T2
DE69324515T2 DE69324515T DE69324515T DE69324515T2 DE 69324515 T2 DE69324515 T2 DE 69324515T2 DE 69324515 T DE69324515 T DE 69324515T DE 69324515 T DE69324515 T DE 69324515T DE 69324515 T2 DE69324515 T2 DE 69324515T2
Authority
DE
Germany
Prior art keywords
magneto
magnetic head
optical recording
reproducing device
head device
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
DE69324515T
Other languages
English (en)
Other versions
DE69324515D1 (de
Inventor
Yoshio Katayama
Seiichi Fujii
Sadao Uchiyama
Ryouichi Soejima
Hitoshi Moori
Hideo Yoshida
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
Application granted granted Critical
Publication of DE69324515D1 publication Critical patent/DE69324515D1/de
Publication of DE69324515T2 publication Critical patent/DE69324515T2/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
    • G11B11/10595—Control of operating function
    • 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
    • G11B11/10532—Heads
    • G11B11/10534—Heads for recording by magnetising, demagnetising or transfer of magnetisation, by radiation, e.g. for thermomagnetic recording
    • 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
    • G11B11/1055—Disposition or mounting of transducers relative to record carriers
    • G11B11/10576—Disposition or mounting of transducers relative to record carriers with provision for moving the transducers for maintaining alignment or spacing relative to the carrier
DE69324515T 1992-02-14 1993-02-08 Magnetkopfvorrichtung und magnetooptisches Aufzeichnungs- und Wiedergabegerät Expired - Fee Related DE69324515T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4027614A JP2813261B2 (ja) 1992-02-14 1992-02-14 光磁気ディスク用磁気ヘッド装置及び光磁気記録再生装置

Publications (2)

Publication Number Publication Date
DE69324515D1 DE69324515D1 (de) 1999-05-27
DE69324515T2 true DE69324515T2 (de) 1999-10-28

Family

ID=12225817

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69324515T Expired - Fee Related DE69324515T2 (de) 1992-02-14 1993-02-08 Magnetkopfvorrichtung und magnetooptisches Aufzeichnungs- und Wiedergabegerät

Country Status (4)

Country Link
US (1) US5471439A (de)
EP (1) EP0555801B1 (de)
JP (1) JP2813261B2 (de)
DE (1) DE69324515T2 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3153947B2 (ja) * 1993-04-28 2001-04-09 ソニー株式会社 磁気ヘッド及び光磁気記録装置
US5600515A (en) * 1993-06-30 1997-02-04 Matsushita Electric Industrial Co., Ltd. Sliding type magnetic head assembly having a spherical contact surface offset from a magnetic pole
US5986451A (en) * 1996-10-30 1999-11-16 Phase Metrics, Inc. Low z-height loader for a head gimbal assembly
US6583963B2 (en) * 1997-10-07 2003-06-24 Seagate Technology Llc Apparatus to improve shock capability of disc drives
US20020106199A1 (en) * 1998-05-27 2002-08-08 Osamu Ikeda Image signal recording/reproduction apparatus, method employed therein, and image signal recording apparatus
JP2000163899A (ja) * 1998-11-30 2000-06-16 Fujitsu Ltd 記録ディスク駆動装置
JP3357852B2 (ja) * 1998-12-17 2002-12-16 三洋電機株式会社 光磁気ディスク装置
US7102992B1 (en) * 2000-07-27 2006-09-05 Termstar Corporation Contact optical head for data storage
US6865060B2 (en) * 2001-04-26 2005-03-08 Matsushita Electric Industrial Co., Ltd. Disk drive device having a lifting plate configured to lift a magnetic head supporting member

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4202020A (en) * 1978-08-31 1980-05-06 International Business Machines Corporation Magnetic head load control system
JPH0619863B2 (ja) * 1984-06-13 1994-03-16 株式会社日立製作所 光磁気情報記憶方法及び装置
JPS61198433A (ja) * 1985-02-28 1986-09-02 Canon Inc 光学ヘツド装置
US4843600A (en) * 1985-09-13 1989-06-27 Canon Kabushiki Kaisha Recording head for magneto-optical information recording apparatus
JPS6391852A (ja) * 1986-10-07 1988-04-22 Toshiba Corp 情報記録方法
US5020041A (en) * 1987-03-06 1991-05-28 Hitachi, Ltd. Magneto-optical memory apparatus having a floating magnetic head
US4819091A (en) * 1987-04-30 1989-04-04 International Business Machines Corporation High speed magnetic disk contact recording system
JPH0661122B2 (ja) * 1987-05-08 1994-08-10 シャープ株式会社 光磁気ディスク装置
JP2564309B2 (ja) * 1987-06-12 1996-12-18 株式会社日立製作所 光磁気記録装置
JPS6472373A (en) * 1987-09-11 1989-03-17 Matsushita Communication Ind Optical head fixing device
JPH0214440A (ja) * 1988-06-30 1990-01-18 Fujitsu Ltd 光磁気ディスク装置
JPH0661123B2 (ja) * 1988-10-28 1994-08-10 株式会社日立製作所 光学磁気記録再生装置
JPH02203418A (ja) * 1989-01-31 1990-08-13 Kyocera Corp 光磁気記録用磁気ヘッド
NL8900752A (nl) * 1989-03-28 1990-10-16 Philips Nv Inrichting voor het inschrijven en/of uitlezen van een magneto-optische informatiedrager.
US5179544A (en) * 1989-03-28 1993-01-12 U.S. Philips Corporation Control system for the magnetic head of a magneto-optical disc apparatus
JP2901266B2 (ja) * 1989-04-06 1999-06-07 日本電気株式会社 磁気ヘッド・ディスク間距離制御装置
DE69011759T2 (de) * 1989-06-15 1995-03-16 Matsushita Electric Ind Co Ltd Magneto-optisches Aufnahme- und/oder Wiedergabegerät.
JPH03142701A (ja) * 1989-10-30 1991-06-18 Fujitsu Ltd 光磁気ディスク用ヘッド
JP2601553B2 (ja) * 1989-12-28 1997-04-16 シャープ株式会社 光磁気記録再生装置
US5223998A (en) * 1990-02-02 1993-06-29 Hitachi Ltd. Magnetic head slider unit having a float slider and magnetic head mounted thereon for contact magnetic recording
JP2784829B2 (ja) * 1990-02-06 1998-08-06 ソニー株式会社 記録信号磁界発生装置
JPH0413254A (ja) * 1990-04-28 1992-01-17 Sony Corp 光磁気記録再生装置
JPH04245045A (ja) * 1991-01-31 1992-09-01 Sony Corp 光磁気ディスク装置用の磁気ヘッド駆動装置

Also Published As

Publication number Publication date
EP0555801B1 (de) 1999-04-21
US5471439A (en) 1995-11-28
EP0555801A1 (de) 1993-08-18
JP2813261B2 (ja) 1998-10-22
DE69324515D1 (de) 1999-05-27
JPH05225636A (ja) 1993-09-03

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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