JPS5956242A - 光磁気記録読取系 - Google Patents

光磁気記録読取系

Info

Publication number
JPS5956242A
JPS5956242A JP16812382A JP16812382A JPS5956242A JP S5956242 A JPS5956242 A JP S5956242A JP 16812382 A JP16812382 A JP 16812382A JP 16812382 A JP16812382 A JP 16812382A JP S5956242 A JPS5956242 A JP S5956242A
Authority
JP
Japan
Prior art keywords
reflectance
magneto
recording medium
reading system
optical
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.)
Granted
Application number
JP16812382A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0237614B2 (enrdf_load_stackoverflow
Inventor
Yasuo Tomita
康生 富田
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP16812382A priority Critical patent/JPS5956242A/ja
Priority to US06/535,698 priority patent/US4639816A/en
Publication of JPS5956242A publication Critical patent/JPS5956242A/ja
Publication of JPH0237614B2 publication Critical patent/JPH0237614B2/ja
Granted 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
    • 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
    • G11B11/10591—Details for improving write-in properties, e.g. Curie-point temperature
JP16812382A 1982-09-27 1982-09-27 光磁気記録読取系 Granted JPS5956242A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP16812382A JPS5956242A (ja) 1982-09-27 1982-09-27 光磁気記録読取系
US06/535,698 US4639816A (en) 1982-09-27 1983-09-26 Magneto-optical recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16812382A JPS5956242A (ja) 1982-09-27 1982-09-27 光磁気記録読取系

Publications (2)

Publication Number Publication Date
JPS5956242A true JPS5956242A (ja) 1984-03-31
JPH0237614B2 JPH0237614B2 (enrdf_load_stackoverflow) 1990-08-27

Family

ID=15862271

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16812382A Granted JPS5956242A (ja) 1982-09-27 1982-09-27 光磁気記録読取系

Country Status (1)

Country Link
JP (1) JPS5956242A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4711821A (en) * 1984-07-13 1987-12-08 Canon Kabushiki Kaisha Opto-magnetic recording medium
US5232790A (en) * 1990-04-28 1993-08-03 Kyocera Corporation Magneto-optical recording disc and method of producing it

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
JOURNAL OF APPLIED PHYSICS KERP-EFFECT ENHANCEMENT AND IMPROVEMENT OF READOUT CHARACTERISTICS IN MNBIFILM MEMORY=1974 *
JOURNAL OF APPLIED PHYSICS KERR-EFFECT ENHANCEMENT AND IMPROVEMENT OF READOUT CHARACTERISTICS IN MNBIFILM MEMORY=1974 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4711821A (en) * 1984-07-13 1987-12-08 Canon Kabushiki Kaisha Opto-magnetic recording medium
US5232790A (en) * 1990-04-28 1993-08-03 Kyocera Corporation Magneto-optical recording disc and method of producing it

Also Published As

Publication number Publication date
JPH0237614B2 (enrdf_load_stackoverflow) 1990-08-27

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