NL8600647A - Magneto-optisch registratie-element en een magneto-optische registratie-inrichting. - Google Patents

Magneto-optisch registratie-element en een magneto-optische registratie-inrichting. Download PDF

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Publication number
NL8600647A
NL8600647A NL8600647A NL8600647A NL8600647A NL 8600647 A NL8600647 A NL 8600647A NL 8600647 A NL8600647 A NL 8600647A NL 8600647 A NL8600647 A NL 8600647A NL 8600647 A NL8600647 A NL 8600647A
Authority
NL
Netherlands
Prior art keywords
magneto
layer
recording layer
rare earth
light beam
Prior art date
Application number
NL8600647A
Other languages
English (en)
Dutch (nl)
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Priority to NL8600647A priority Critical patent/NL8600647A/nl
Priority to US06/928,953 priority patent/US4710431A/en
Priority to EP87200339A priority patent/EP0240046B1/en
Priority to DE8787200339T priority patent/DE3772604D1/de
Priority to JP62053193A priority patent/JPS62223840A/ja
Publication of NL8600647A publication Critical patent/NL8600647A/nl

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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal
NL8600647A 1986-03-13 1986-03-13 Magneto-optisch registratie-element en een magneto-optische registratie-inrichting. NL8600647A (nl)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL8600647A NL8600647A (nl) 1986-03-13 1986-03-13 Magneto-optisch registratie-element en een magneto-optische registratie-inrichting.
US06/928,953 US4710431A (en) 1986-03-13 1986-11-10 Magnetooptical recording element and a magnetooptical recording device
EP87200339A EP0240046B1 (en) 1986-03-13 1987-02-26 Magneto-optical recording element and a magneto-optical recording device
DE8787200339T DE3772604D1 (de) 1986-03-13 1987-02-26 Magnetooptisches aufzeichnungselement und ein magnetooptischer aufzeichnungsapparat.
JP62053193A JPS62223840A (ja) 1986-03-13 1987-03-10 光磁気記録素子及び光磁気記録装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8600647 1986-03-13
NL8600647A NL8600647A (nl) 1986-03-13 1986-03-13 Magneto-optisch registratie-element en een magneto-optische registratie-inrichting.

Publications (1)

Publication Number Publication Date
NL8600647A true NL8600647A (nl) 1987-10-01

Family

ID=19847706

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8600647A NL8600647A (nl) 1986-03-13 1986-03-13 Magneto-optisch registratie-element en een magneto-optische registratie-inrichting.

Country Status (5)

Country Link
US (1) US4710431A (ja)
EP (1) EP0240046B1 (ja)
JP (1) JPS62223840A (ja)
DE (1) DE3772604D1 (ja)
NL (1) NL8600647A (ja)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5100741A (en) * 1984-09-12 1992-03-31 Seiko Epson Corporation Magneto-optic recording systems
US5529854A (en) * 1984-09-12 1996-06-25 Seiko Epson Corporation Magneto-optic recording systems
US4888750A (en) * 1986-03-07 1989-12-19 Kryder Mark H Method and system for erase before write magneto-optic recording
US4812637A (en) * 1986-07-07 1989-03-14 Brother Kogyo Kabushiki Kaisha Optical disc head with high signal-to-noise ratio
CN1044940C (zh) * 1992-08-13 1999-09-01 Ybm麦格奈克斯公司 基于钕铁硼的生产永久磁铁的方法
KR0183938B1 (ko) * 1995-10-28 1999-04-15 삼성전자주식회사 비정질 경희토류-천이금속과 반금속의 합금,이로부터 형성되는 광자기 기록막 및 이 기록막을 채용한 광자기 디스크

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7900921A (nl) * 1979-02-06 1980-08-08 Philips Nv Thermomagnetische informatiedrager en optische geheu- geninrichting voorzien van een dergelijke informatie- drager.
DE3381422D1 (de) * 1982-12-23 1990-05-10 Sony Corp Thermomagnetisches optisches aufzeichnungs-/wiedergabeverfahren.
JPS6079702A (ja) * 1983-10-06 1985-05-07 Kokusai Denshin Denwa Co Ltd <Kdd> 光磁気記録媒体
JPS60128606A (ja) * 1983-12-15 1985-07-09 Seiko Instr & Electronics Ltd 光磁気記録媒体
FR2566758B1 (fr) * 1984-06-29 1990-01-12 Centre Nat Rech Scient Nouveaux hydrures de terre rare/fer/bore et terre rare/cobalt/bore magnetiques, leur procede de fabrication et de fabrication des produits deshydrures pulverulents correspondants, leurs applications
JPS6122608A (ja) * 1984-07-11 1986-01-31 Hitachi Ltd 光磁気記録材料
JPS6148148A (ja) * 1984-08-13 1986-03-08 Toshiba Corp 光熱磁気記録媒体
JPH0614488B2 (ja) * 1984-10-17 1994-02-23 セイコーエプソン株式会社 光磁気記録媒体
JPS61253655A (ja) * 1985-05-02 1986-11-11 Pioneer Electronic Corp 光磁気記録媒体

Also Published As

Publication number Publication date
EP0240046A1 (en) 1987-10-07
EP0240046B1 (en) 1991-09-04
JPS62223840A (ja) 1987-10-01
US4710431A (en) 1987-12-01
DE3772604D1 (de) 1991-10-10

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