JPH10112036A - 記録再生装置 - Google Patents

記録再生装置

Info

Publication number
JPH10112036A
JPH10112036A JP8266369A JP26636996A JPH10112036A JP H10112036 A JPH10112036 A JP H10112036A JP 8266369 A JP8266369 A JP 8266369A JP 26636996 A JP26636996 A JP 26636996A JP H10112036 A JPH10112036 A JP H10112036A
Authority
JP
Japan
Prior art keywords
recording
recording medium
reproducing apparatus
optical
head
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.)
Pending
Application number
JP8266369A
Other languages
English (en)
Japanese (ja)
Other versions
JPH10112036A5 (enExample
Inventor
Osamu Ishizaki
修 石崎
Katsusuke Shimazaki
勝輔 島崎
Toshinori Sugiyama
寿紀 杉山
Masashi Yoshihiro
昌史 吉弘
Susumu Imai
奨 今井
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.)
Maxell Ltd
Original Assignee
Hitachi Maxell Ltd
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 Hitachi Maxell Ltd filed Critical Hitachi Maxell Ltd
Priority to JP8266369A priority Critical patent/JPH10112036A/ja
Priority to US08/946,066 priority patent/US6044041A/en
Publication of JPH10112036A publication Critical patent/JPH10112036A/ja
Priority to US09/482,463 priority patent/US6434088B1/en
Publication of JPH10112036A5 publication Critical patent/JPH10112036A5/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1372—Lenses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
    • 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
    • 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
    • G11B11/10552—Arrangements of transducers relative to each other, e.g. coupled heads, optical and magnetic head on the same base
    • G11B11/10554—Arrangements of transducers relative to each other, e.g. coupled heads, optical and magnetic head on the same base the transducers being disposed on the same side of the carrier
    • 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
    • G11B11/10556—Disposition or mounting of transducers relative to record carriers with provision for moving or switching or masking the transducers in or out of their operative position
    • G11B11/10567—Mechanically moving the transducers
    • G11B11/10569—Swing arm positioners
    • 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
    • G11B11/10578—Servo format, e.g. prepits, guide tracks, pilot signals
    • 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
    • G11B11/1058—Flying heads
    • 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
    • G11B11/10556—Disposition or mounting of transducers relative to record carriers with provision for moving or switching or masking the transducers in or out of their operative position
    • G11B11/10563—Access of indexed parts
    • G11B11/10565—Marks for track change, e.g. prepits, gray codes
    • 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
    • G11B11/10556—Disposition or mounting of transducers relative to record carriers with provision for moving or switching or masking the transducers in or out of their operative position
    • G11B11/10567—Mechanically moving the transducers
    • G11B11/10571—Sled type positioners
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/02—Details
    • G11B17/04—Feeding or guiding single record carrier to or from transducer unit
    • G11B17/041—Feeding or guiding single record carrier to or from transducer unit specially adapted for discs contained within cartridges
    • G11B17/043—Direct insertion, i.e. without external loading means
    • G11B17/0436—Direct insertion, i.e. without external loading means with opening mechanism of the cartridge shutter
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/17—Construction or disposition of windings

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Nanotechnology (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optical Head (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
JP8266369A 1996-10-07 1996-10-07 記録再生装置 Pending JPH10112036A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP8266369A JPH10112036A (ja) 1996-10-07 1996-10-07 記録再生装置
US08/946,066 US6044041A (en) 1996-10-07 1997-10-07 Recording and reproducing apparatus having a magneto-optical head with an objective lens and laser-beam-permeable member
US09/482,463 US6434088B1 (en) 1996-10-07 2000-01-13 Recording and reproducing apparatus having a magneto-optical head with an objective lens and laser-beam-permeable member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8266369A JPH10112036A (ja) 1996-10-07 1996-10-07 記録再生装置

Related Child Applications (2)

Application Number Title Priority Date Filing Date
JP11234837A Division JP2000067448A (ja) 1999-08-23 1999-08-23 記録再生装置
JP11234838A Division JP2000076726A (ja) 1999-08-23 1999-08-23 記録再生装置

Publications (2)

Publication Number Publication Date
JPH10112036A true JPH10112036A (ja) 1998-04-28
JPH10112036A5 JPH10112036A5 (enExample) 2004-07-22

Family

ID=17429994

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8266369A Pending JPH10112036A (ja) 1996-10-07 1996-10-07 記録再生装置

Country Status (2)

Country Link
US (2) US6044041A (enExample)
JP (1) JPH10112036A (enExample)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1039458A3 (en) * 1999-03-19 2000-11-15 Fujitsu Limited Optical head and coil assembly used for the same
EP1111591A4 (en) * 1998-09-02 2003-04-02 Hitachi Ltd Information recording / reproducing DEVICE
EP1184861A4 (en) * 1999-05-31 2003-09-10 Fujitsu Ltd RECORDING HEAD, METHOD FOR PRODUCING A RECORDING HEAD, AND INFORMATION RECORDING DEVICE
KR100607942B1 (ko) * 1999-11-13 2006-08-03 삼성전자주식회사 기록재생용 광헤드 및 이를 채용한 광기록 재생장치
KR100839571B1 (ko) * 2000-04-14 2008-06-18 소니 가부시끼 가이샤 광학 소자, 광학 헤드 및 신호 재생 방법

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6922376B1 (en) * 1997-10-17 2005-07-26 Sony Corportion Sil magneto-optic transducer having thin film magnetic coil and holded magnetic core
US6324129B1 (en) * 1998-01-08 2001-11-27 Seagate Technology Llc Near field magneto-optical head having read and write pinhole apertures
JPH11213425A (ja) * 1998-01-22 1999-08-06 Olympus Optical Co Ltd 光ディスク装置
JP2000132880A (ja) * 1998-10-28 2000-05-12 Fujitsu Ltd 情報再生素子及びそれを備える情報記録／再生ヘッド並びに情報再生方法
US6130864A (en) * 1999-03-04 2000-10-10 Terastor Corporation Method and apparatus for generating magnetic field for magneto-optic recording system
JP2001236670A (ja) * 2000-02-18 2001-08-31 Sony Corp 光学ヘッド用スライダ及びその製造方法並びに記録再生装置
JP4019615B2 (ja) * 2000-03-10 2007-12-12 富士ゼロックス株式会社 光磁気素子、光磁気ヘッドおよび磁気ディスク装置
EP1136991A3 (en) * 2000-03-24 2005-04-20 Pioneer Corporation Slider moving device and information recording/reproducing apparatus
KR100370016B1 (ko) * 2000-06-02 2003-01-29 엘지전자 주식회사 광 정보 저장 장치용 마이크로 미러 및 그 제조 방법과,그를 이용한 광픽업 장치
KR100716945B1 (ko) * 2000-07-18 2007-05-14 삼성전자주식회사 광디스크 드라이브용 공기베어링 슬라이더
US7102992B1 (en) * 2000-07-27 2006-09-05 Termstar Corporation Contact optical head for data storage
AU2002245395A1 (en) * 2001-02-07 2002-08-19 University Of Rochester A system and method for high resolution optical imaging, data storage, lithography, and inspection
JP2003223704A (ja) * 2002-01-25 2003-08-08 Fujitsu Ltd 磁気ヘッドおよびデータ記録再生装置
JP4016667B2 (ja) * 2002-02-15 2007-12-05 ヤマハ株式会社 光ディスク装置、フォーカス制御方法およびプログラム
US6919988B2 (en) * 2002-05-06 2005-07-19 Raytheon Company Optical system for simultaneous imaging of LWIR and millimeter wave radiation
EP1398766A3 (en) * 2002-08-13 2005-08-17 Lg Electronics Inc. Micro-actuator, manufacturing method thereof, optical pickup head of optical recording/reproducing apparatus with micro-actuator and fabrication method thereof
AU2003249516A1 (en) * 2002-09-19 2004-04-08 Koninklijke Philips Electronics N.V. Optical disc apparatus
KR20040067417A (ko) * 2003-01-23 2004-07-30 삼성전자주식회사 광픽업 액츄에이터
US7630167B2 (en) * 2004-05-10 2009-12-08 Samsung Electronics Co., Ltd. Method and apparatus to detect sub-micron particles in a hard disk drive with optical pickup
JP2006277794A (ja) * 2005-03-28 2006-10-12 Shinka Jitsugyo Kk スライダの製造方法

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4807204A (en) * 1986-07-07 1989-02-21 Brother Kogyo Kabushiki Kaisha Magneto-optical recording medium having pairs of mutually corresponding recording segments, and apparatus for recording information on the medium
JP2668708B2 (ja) * 1988-06-20 1997-10-27 株式会社日立製作所 浮動ヘッドスライダ
US5150338A (en) * 1989-08-10 1992-09-22 Hewlett-Packard Company Optical disk reading and writing system having magnetic write head mounted on an air-bearing slider
JPH03122855A (ja) * 1989-10-06 1991-05-24 Fuji Xerox Co Ltd 光磁気記録型記録装置の浮動ヘッド
JPH03203848A (ja) * 1989-12-29 1991-09-05 Kyocera Corp 光磁気ディスクドライブ装置
JPH03280233A (ja) * 1990-03-28 1991-12-11 Mitsubishi Electric Corp 光磁気記録装置
US5138495A (en) * 1990-07-27 1992-08-11 Matsushita Electric Industrial Co., Ltd. Diffractive optical lens
JPH0520723A (ja) * 1991-07-09 1993-01-29 Fuji Xerox Co Ltd 光磁気記録型記録装置の浮動ヘツド
JPH0554457A (ja) * 1991-08-23 1993-03-05 Matsushita Electric Ind Co Ltd 光磁気デイスク装置
JP3203848B2 (ja) 1993-01-14 2001-08-27 株式会社神戸製鋼所 銅または銅合金の溶製法
US5432763A (en) * 1993-03-15 1995-07-11 Hewlett-Packard Company Subminiature rotary actuator optical head
JPH087309A (ja) * 1994-06-16 1996-01-12 Canon Inc 対物レンズ駆動装置
US5497359A (en) * 1994-08-30 1996-03-05 National Business Machines Corporation Optical disk data storage system with radiation-transparent air-bearing slider
JP3487001B2 (ja) * 1995-02-01 2004-01-13 ソニー株式会社 光ヘッド、光照射方法、記録媒体駆動装置
JP3567515B2 (ja) * 1995-02-15 2004-09-22 ソニー株式会社 光学ピックアップ装置
ID16848A (id) * 1996-05-01 1997-11-13 Terastor Corp Kepala layang dengan lensa padat yang terbenam
JP3280233B2 (ja) 1996-06-20 2002-04-30 弘昭 杉山 果実切取り器
US5689480A (en) * 1996-08-13 1997-11-18 The Board Of Trustees Of The Leland Stanford Junior University Magneto-optic recording system employing near field optics
US5859814A (en) * 1996-10-18 1999-01-12 The Board Of Trustees Of The Leland Stanford Junior University Magneto-optic recording system and method
US5828644A (en) * 1997-04-08 1998-10-27 Seagate Technology, Inc. Microactuator for fine focusing a slider-mounted lens of an optical disc drive

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1111591A4 (en) * 1998-09-02 2003-04-02 Hitachi Ltd Information recording / reproducing DEVICE
EP1039458A3 (en) * 1999-03-19 2000-11-15 Fujitsu Limited Optical head and coil assembly used for the same
US6567347B1 (en) 1999-03-19 2003-05-20 Fujitsu Limited Optical head having a plurality of coil elements connected in parallel to each other
US6898157B2 (en) 1999-03-19 2005-05-24 Fujitsu Limited Optical head having a plurality of coil elements connected in parallel to each other
EP1184861A4 (en) * 1999-05-31 2003-09-10 Fujitsu Ltd RECORDING HEAD, METHOD FOR PRODUCING A RECORDING HEAD, AND INFORMATION RECORDING DEVICE
KR100607942B1 (ko) * 1999-11-13 2006-08-03 삼성전자주식회사 기록재생용 광헤드 및 이를 채용한 광기록 재생장치
KR100839571B1 (ko) * 2000-04-14 2008-06-18 소니 가부시끼 가이샤 광학 소자, 광학 헤드 및 신호 재생 방법

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