DE3675732D1 - Optisches aufzeichnungsmedium mit spurrille. - Google Patents

Optisches aufzeichnungsmedium mit spurrille.

Info

Publication number
DE3675732D1
DE3675732D1 DE8686306993T DE3675732T DE3675732D1 DE 3675732 D1 DE3675732 D1 DE 3675732D1 DE 8686306993 T DE8686306993 T DE 8686306993T DE 3675732 T DE3675732 T DE 3675732T DE 3675732 D1 DE3675732 D1 DE 3675732D1
Authority
DE
Germany
Prior art keywords
track
recording medium
optical recording
optical
medium
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
DE8686306993T
Other languages
English (en)
Inventor
Katsutarou C O Patent Ichihara
Yoshiaki C O Patent Terashima
Nobuaki C O Patent Divi Yasuda
Akio C O Patent Division Hori
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.)
Toshiba Corp
Original Assignee
Toshiba 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
Priority claimed from JP60214519A external-priority patent/JPS6275946A/ja
Priority claimed from JP61047338A external-priority patent/JP2509561B2/ja
Application filed by Toshiba Corp filed Critical Toshiba Corp
Application granted granted Critical
Publication of DE3675732D1 publication Critical patent/DE3675732D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or 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
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/146—Laser beam
DE8686306993T 1985-09-30 1986-09-10 Optisches aufzeichnungsmedium mit spurrille. Expired - Lifetime DE3675732D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP60214519A JPS6275946A (ja) 1985-09-30 1985-09-30 光学式情報記録媒体
JP61047338A JP2509561B2 (ja) 1986-03-06 1986-03-06 光ディスク

Publications (1)

Publication Number Publication Date
DE3675732D1 true DE3675732D1 (de) 1991-01-03

Family

ID=26387507

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686306993T Expired - Lifetime DE3675732D1 (de) 1985-09-30 1986-09-10 Optisches aufzeichnungsmedium mit spurrille.

Country Status (3)

Country Link
US (1) US4782477A (de)
EP (1) EP0218380B1 (de)
DE (1) DE3675732D1 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2525822B2 (ja) * 1986-10-25 1996-08-21 株式会社東芝 光記録媒体及びその製造方法
JPH0236222A (ja) * 1988-01-20 1990-02-06 Internatl Business Mach Corp <Ibm> ポリ（ハイドロキシエーテル‐ジフエニルジメチルシロキサン）コポリマー及び前記コポリマーを含む加熱ローラ及び光ディスク
DE3813171A1 (de) * 1988-04-20 1989-11-02 Hoechst Ag Informationsaufzeichnungselement
JP2538647B2 (ja) * 1988-07-22 1996-09-25 富士通株式会社 光ディスク媒体
US5109377A (en) * 1988-08-22 1992-04-28 Fuji Photo Film Co., Ltd. Magneto-optical recording medium and method of producing the same
US5249175A (en) * 1988-09-09 1993-09-28 Matsushita Electric Industrial Co., Ltd. Optical information recording medium and information recording and reproducing method therefor
US5373491A (en) * 1991-05-30 1994-12-13 Hitachi, Ltd. Wavelength-multiple optical recording medium
JP3151058B2 (ja) * 1992-08-05 2001-04-03 パイオニア株式会社 光ディスク
US5518788A (en) * 1994-11-14 1996-05-21 Minnesota Mining And Manufacturing Company Antistatic hard coat incorporating a polymer comprising pendant fluorinated groups
JPH11149664A (ja) * 1997-11-19 1999-06-02 Sharp Corp 光ディスク
JPH11264071A (ja) * 1998-03-18 1999-09-28 Matsushita Electron Corp 薄膜の形成方法
JP3840345B2 (ja) * 1999-03-19 2006-11-01 富士写真フイルム株式会社 光情報記録媒体
US6269072B1 (en) * 1999-10-22 2001-07-31 Victor Company Of Japan, Ltd. Optical disc
US6501589B1 (en) * 2001-02-22 2002-12-31 Aralight Article comprising a metallic anti-mirror
JP4229613B2 (ja) * 2002-01-09 2009-02-25 リンテック株式会社 光ディスク用保護フィルム及びそれを用いた光ディスク
US20040182701A1 (en) * 2003-01-29 2004-09-23 Aashi Glass Company, Limited Sputtering apparatus, a mixed film produced by the sputtering apparatus and a multilayer film including the mixed film
JP4782037B2 (ja) * 2006-03-03 2011-09-28 キヤノンアネルバ株式会社 磁気抵抗効果素子の製造方法及び製造装置
JP2010250276A (ja) * 2009-03-27 2010-11-04 Seiko Epson Corp 光学物品及び光学物品の製造方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1391610A (en) * 1971-05-10 1975-04-23 Ici Ltd Coating compositions
JPS5390354A (en) * 1977-01-19 1978-08-09 Asahi Glass Co Ltd Fluorine-containing copolymer composition having improved transparency
SU711096A1 (ru) * 1978-01-09 1980-01-25 Физико-Технический Институт Низких Температур Ан Украинской Сср Уплотн ющий материал
CA1185013A (en) * 1981-01-14 1985-04-02 Kenji Ohta Magneto-optic memory medium
DE3377173D1 (en) * 1982-09-29 1988-07-28 Toshiba Kk Radiation-sensitive carrier body utilized as stamper structure
JPS5965950A (ja) * 1982-10-05 1984-04-14 Canon Inc 光学的記録要素
JPS59188856A (ja) * 1983-04-12 1984-10-26 Fuji Photo Film Co Ltd レ−ザ−記録媒体
US4578788A (en) * 1983-06-02 1986-03-25 International Business Machines Corporation High performance optical storage medium with separate mechanical servo tracks embedded within the medium
CA1224270A (en) * 1983-09-16 1987-07-14 Junji Hirokane Magneto-optic memory element
JPS6079543A (ja) * 1983-10-05 1985-05-07 Daicel Chem Ind Ltd プラスチツク基盤上に希土類−遷移金属アモルフアスの光磁気記録媒体層を形成した記録担体
US4670322A (en) * 1983-12-05 1987-06-02 Ricoh Company, Ltd. Metal oxide magnetic substance and a magnetic film consisting thereof and their uses
US4719137A (en) * 1984-04-13 1988-01-12 Sharp Kabushiki Kaisha Magneto-optic memory element
US4580790A (en) * 1984-06-21 1986-04-08 Hughes Aircraft Company Sintered polytetrafluoroethylene composite material and seal assembly
JPS6132237A (ja) * 1984-07-23 1986-02-14 Ricoh Co Ltd デイスク状情報記録媒体
JPS6132238A (ja) * 1984-07-24 1986-02-14 Nippon Kogaku Kk <Nikon> 高密度情報記録デイスク用担体の製造方法
US4635076A (en) * 1985-03-14 1987-01-06 Minnesota Mining And Manufacturing Company Two-sided optical recording medium
JPS61292239A (ja) * 1985-06-19 1986-12-23 Matsushita Electric Ind Co Ltd 情報記録媒体

Also Published As

Publication number Publication date
EP0218380A1 (de) 1987-04-15
EP0218380B1 (de) 1990-11-22
US4782477A (en) 1988-11-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee