JPH0239004B2 - - Google Patents

Info

Publication number
JPH0239004B2
JPH0239004B2 JP55127488A JP12748880A JPH0239004B2 JP H0239004 B2 JPH0239004 B2 JP H0239004B2 JP 55127488 A JP55127488 A JP 55127488A JP 12748880 A JP12748880 A JP 12748880A JP H0239004 B2 JPH0239004 B2 JP H0239004B2
Authority
JP
Japan
Prior art keywords
magnetic
spot
minute
recording
magnetic field
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 - Lifetime
Application number
JP55127488A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5753801A (ja
Inventor
Takao Tsuji
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 JP12748880A priority Critical patent/JPS5753801A/ja
Publication of JPS5753801A publication Critical patent/JPS5753801A/ja
Publication of JPH0239004B2 publication Critical patent/JPH0239004B2/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
    • G11B13/00—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for
    • G11B13/04—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for magnetically or by magnetisation and optically or by radiation, for changing or sensing optical properties
    • G11B13/045—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for magnetically or by magnetisation and optically or by radiation, for changing or sensing optical properties combined recording by magnetic and optic means
    • 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 Recording Or Reproduction (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
JP12748880A 1980-09-13 1980-09-13 Konetsujikikirokusochi Granted JPS5753801A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12748880A JPS5753801A (ja) 1980-09-13 1980-09-13 Konetsujikikirokusochi

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12748880A JPS5753801A (ja) 1980-09-13 1980-09-13 Konetsujikikirokusochi

Publications (2)

Publication Number Publication Date
JPS5753801A JPS5753801A (ja) 1982-03-31
JPH0239004B2 true JPH0239004B2 (enrdf_load_stackoverflow) 1990-09-03

Family

ID=14961181

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12748880A Granted JPS5753801A (ja) 1980-09-13 1980-09-13 Konetsujikikirokusochi

Country Status (1)

Country Link
JP (1) JPS5753801A (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57113403A (en) * 1981-01-06 1982-07-14 Victor Co Of Japan Ltd Magnetic tape recording system
US4610009A (en) * 1983-05-23 1986-09-02 Xerox Corporation Writing, erasing and readout system for a magneto-optic recording medium
CN101253276B (zh) * 2005-08-31 2012-10-10 国立大学法人三重大学 以生物质为原料的糖组合物的制造方法
JPWO2021205960A1 (enrdf_load_stackoverflow) 2020-04-09 2021-10-14

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51107810A (ja) * 1975-03-19 1976-09-24 Matsushita Electric Ind Co Ltd Jikikirokusochi

Also Published As

Publication number Publication date
JPS5753801A (ja) 1982-03-31

Similar Documents

Publication Publication Date Title
US7266268B2 (en) Diffraction grating
USRE43056E1 (en) Super resolution information reproduction by tracking address information in normal resolution
JP4038336B2 (ja) 情報記録再生方法
US4686661A (en) Information processing apparatus used in a magneto-optical information recording-reproducing apparatus and having improved erasing capability
US5107471A (en) Magnetic head having a rectangular configuration for use in a magneto-optical recording system
JPH10149595A (ja) 磁壁を移動させて情報の再生を行う情報再生装置
US5644556A (en) Magneto-optical disk having cellularly divided regions with alternating directions of magnetization and method of initializing direction of magnetization of magneto-optical disk prior to recording of information
JPH0239004B2 (enrdf_load_stackoverflow)
JPH01199344A (ja) 光磁気記録再生方式
JPS6217282B2 (enrdf_load_stackoverflow)
US5144602A (en) Magneto-optical information recording method and apparatus in which a laser beam oscillates in a track-width direction
JPS61153858A (ja) 熱的記録光学的再生装置
JPH01112505A (ja) 磁場変調光磁気記録方式
US4363058A (en) Magnetic recording device
JPH04368647A (ja) 光磁気ヘッド装置および光磁気記録方法
JPS6013304A (ja) 光熱磁気記録消去装置
JP2749067B2 (ja) 情報記録方法及び装置及び情報記録再生方法及び装置
JP3264868B2 (ja) 光磁気記録媒体、再生方法および再生装置
JP2770522B2 (ja) 光学的情報の記録方法
JP2000021041A (ja) 浮上型磁気ヘッド装置及びこれを用いた信号再生方法、記録再生方法
JPH03192524A (ja) 光学的情報の消去方法
JPH03156726A (ja) 光学的情報の消去方法
JPS61105747A (ja) 熱磁気記録再生装置
JPS61105748A (ja) 熱磁気記録再生装置
JP2005293781A (ja) 情報記録再生方法