JPS51134614A - Photomagnetic recorder - Google Patents

Photomagnetic recorder

Info

Publication number
JPS51134614A
JPS51134614A JP50058641A JP5864175A JPS51134614A JP S51134614 A JPS51134614 A JP S51134614A JP 50058641 A JP50058641 A JP 50058641A JP 5864175 A JP5864175 A JP 5864175A JP S51134614 A JPS51134614 A JP S51134614A
Authority
JP
Japan
Prior art keywords
photomagnetic
recorder
photobeam
miniaturization
generator
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
JP50058641A
Other languages
Japanese (ja)
Inventor
Keiji Suzuki
Yasuo Ikeda
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.)
Teac Corp
Original Assignee
Teac 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 Teac Corp filed Critical Teac Corp
Priority to JP50058641A priority Critical patent/JPS51134614A/en
Publication of JPS51134614A publication Critical patent/JPS51134614A/en
Pending 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

Landscapes

  • Optical Head (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

PURPOSE:Miniaturization and output reduction of the photobeam generator of photomagnetic recorder.
JP50058641A 1975-05-19 1975-05-19 Photomagnetic recorder Pending JPS51134614A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50058641A JPS51134614A (en) 1975-05-19 1975-05-19 Photomagnetic recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50058641A JPS51134614A (en) 1975-05-19 1975-05-19 Photomagnetic recorder

Publications (1)

Publication Number Publication Date
JPS51134614A true JPS51134614A (en) 1976-11-22

Family

ID=13090194

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50058641A Pending JPS51134614A (en) 1975-05-19 1975-05-19 Photomagnetic recorder

Country Status (1)

Country Link
JP (1) JPS51134614A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5529886A (en) * 1978-08-24 1980-03-03 Nec Corp Light source for optical information recorder
JPS5587388A (en) * 1978-12-26 1980-07-02 Ricoh Co Ltd Magnetic memory device
JPS57200912A (en) * 1981-06-04 1982-12-09 Pioneer Electronic Corp Information recording system
JPS61131202A (en) * 1984-11-30 1986-06-18 Nippon Telegr & Teleph Corp <Ntt> Thermomagnetic recording system
JPS61177605A (en) * 1985-01-31 1986-08-09 Nippon Telegr & Teleph Corp <Ntt> Thermomagnetic recording system
JPH0296937A (en) * 1988-10-03 1990-04-09 Nippon Columbia Co Ltd Optical information recorder
JPH03276427A (en) * 1990-03-27 1991-12-06 Citizen Watch Co Ltd Optical head

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3509348A (en) * 1967-09-18 1970-04-28 Bell Telephone Labor Inc Optical memory device utilizing metal semiconductor phase transition materials

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3509348A (en) * 1967-09-18 1970-04-28 Bell Telephone Labor Inc Optical memory device utilizing metal semiconductor phase transition materials

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5529886A (en) * 1978-08-24 1980-03-03 Nec Corp Light source for optical information recorder
JPS5587388A (en) * 1978-12-26 1980-07-02 Ricoh Co Ltd Magnetic memory device
JPS57200912A (en) * 1981-06-04 1982-12-09 Pioneer Electronic Corp Information recording system
JPS61131202A (en) * 1984-11-30 1986-06-18 Nippon Telegr & Teleph Corp <Ntt> Thermomagnetic recording system
JPS61177605A (en) * 1985-01-31 1986-08-09 Nippon Telegr & Teleph Corp <Ntt> Thermomagnetic recording system
JPH0296937A (en) * 1988-10-03 1990-04-09 Nippon Columbia Co Ltd Optical information recorder
JPH03276427A (en) * 1990-03-27 1991-12-06 Citizen Watch Co Ltd Optical head

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