DE69122916T2 - Informationsaufzeichnungsmedium und Verfahren zu seiner Herstellung - Google Patents

Informationsaufzeichnungsmedium und Verfahren zu seiner Herstellung

Info

Publication number
DE69122916T2
DE69122916T2 DE69122916T DE69122916T DE69122916T2 DE 69122916 T2 DE69122916 T2 DE 69122916T2 DE 69122916 T DE69122916 T DE 69122916T DE 69122916 T DE69122916 T DE 69122916T DE 69122916 T2 DE69122916 T2 DE 69122916T2
Authority
DE
Germany
Prior art keywords
production
recording medium
information recording
information
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 - Fee Related
Application number
DE69122916T
Other languages
English (en)
Other versions
DE69122916D1 (de
Inventor
Yoshihisa Usami
Mitsuru Sawano
Takahito Miyoshi
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.)
Fujifilm Corp
Original Assignee
Fuji Photo Film Co Ltd
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 JP2191257A external-priority patent/JP2957651B2/ja
Priority claimed from JP26786490A external-priority patent/JP3152351B2/ja
Priority claimed from JP2267865A external-priority patent/JP2966077B2/ja
Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Application granted granted Critical
Publication of DE69122916D1 publication Critical patent/DE69122916D1/de
Publication of DE69122916T2 publication Critical patent/DE69122916T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/26Apparatus or processes specially adapted for the manufacture of record carriers
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/244Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/244Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
    • G11B7/246Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes
    • G11B7/247Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes methine or polymethine dyes
    • G11B7/2472Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes methine or polymethine dyes cyanine
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/007Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • G11B7/00736Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2407Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24073Tracks
    • G11B7/24079Width or depth
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2407Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24085Pits
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/244Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
    • G11B7/249Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing organometallic compounds
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/253Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
    • G11B7/2533Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins
    • G11B7/2534Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins polycarbonates [PC]
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00Stock material or miscellaneous articles
    • Y10S428/913Material designed to be responsive to temperature, light, moisture
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/146Laser beam
DE69122916T 1990-07-19 1991-07-19 Informationsaufzeichnungsmedium und Verfahren zu seiner Herstellung Expired - Fee Related DE69122916T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2191257A JP2957651B2 (ja) 1990-07-19 1990-07-19 情報記録媒体及びその製造方法
JP26786490A JP3152351B2 (ja) 1990-10-05 1990-10-05 情報記録媒体
JP2267865A JP2966077B2 (ja) 1990-10-05 1990-10-05 情報記録媒体

Publications (2)

Publication Number Publication Date
DE69122916D1 DE69122916D1 (de) 1996-12-05
DE69122916T2 true DE69122916T2 (de) 1997-03-13

Family

ID=27326456

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69122916T Expired - Fee Related DE69122916T2 (de) 1990-07-19 1991-07-19 Informationsaufzeichnungsmedium und Verfahren zu seiner Herstellung

Country Status (3)

Country Link
US (1) US5274623A (de)
EP (1) EP0467716B1 (de)
DE (1) DE69122916T2 (de)

Families Citing this family (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2065653A1 (en) * 1991-04-16 1992-10-17 Tadashi Koike Optical recording medium
JPH0540964A (ja) * 1991-08-06 1993-02-19 Canon Inc 光学的記録媒体
JPH05303769A (ja) * 1992-04-27 1993-11-16 Sharp Corp 光ディスク
JP3170062B2 (ja) * 1992-09-25 2001-05-28 パイオニア株式会社 光ディスク
JP2879185B2 (ja) * 1993-04-16 1999-04-05 ティーディーケイ株式会社 光磁気ディスク
JP2853724B2 (ja) * 1993-06-30 1999-02-03 日本ビクター株式会社 光記録媒体、その製造方法及びその再生装置
US5602825A (en) * 1994-01-19 1997-02-11 Kabushiki Kaisha Toshiba Optical disk and optical disk apparatus
USRE38643E1 (en) 1994-01-19 2004-11-02 Kabushiki Kaisha Toshiba Optical disk having specified track pitch, and optical disk apparatus
US6487163B1 (en) * 1994-01-19 2002-11-26 Kabushiki Kaisha Toshiba Optical disk and optical disk apparatus
US5459712A (en) * 1994-01-19 1995-10-17 Kabushiki Kaisha Toshiba Optical disk and optical disk apparatus where information is recorded having a specific track pitch and as a plurality of pit trains, each including a plurality of substantially trapezoidal pits
US5959963A (en) * 1994-01-19 1999-09-28 Kabushiki Kaisha Toshiba Optical disk and optical disk apparatus
IL112759A0 (en) * 1994-02-25 1995-05-26 Khepri Pharmaceuticals Inc Novel cysteine protease inhibitors
JP3284744B2 (ja) * 1994-04-20 2002-05-20 松下電器産業株式会社 光学的情報記録媒体
KR100285541B1 (en) * 1994-09-30 2001-01-04 Samsung Electronics Co Ltd Method for manufacturing organic optical cd-recordable disc
EP0736865A1 (de) * 1995-04-06 1996-10-09 Eastman Kodak Company Farbstofflösung mit einem sterisch gehinderten Lösungsmittel
JP2955224B2 (ja) * 1995-12-28 1999-10-04 花王株式会社 光ディスク用基板の製造方法
US5959960A (en) * 1996-09-27 1999-09-28 Eastman Kodak Company Method of providing a range of conformalities for optical recording layers
JP3255051B2 (ja) * 1996-12-05 2002-02-12 三菱化学株式会社 光学的情報記録用媒体
US6070799A (en) * 1997-01-08 2000-06-06 Eastman Kodak Company Copy protection for a recordable medium and for controlling a recorder
US5963536A (en) * 1997-04-08 1999-10-05 Eastman Kodak Company Copy count protection structure for optical recording medium and method for same
US5972459A (en) * 1997-04-25 1999-10-26 Sony Corporation Optical recording medium and optical disk apparatus
US6167136A (en) * 1997-05-16 2000-12-26 Software Security, Inc. Method for preventing copying of digital video disks
JP3336524B2 (ja) * 1997-08-01 2002-10-21 太陽誘電株式会社 光情報記録媒体
JP3097628B2 (ja) * 1997-11-11 2000-10-10 富士電機株式会社 光記録媒体
JP3286249B2 (ja) * 1998-05-27 2002-05-27 ティーディーケイ株式会社 光記録媒体の製造方法
JP3520203B2 (ja) 1998-07-23 2004-04-19 太陽誘電株式会社 光情報媒体
MY130565A (en) 1998-09-18 2007-06-29 Samsung Electronics Co Ltd Near-field optical storage medium and optical data storage system therefor
JP2000298888A (ja) * 1999-04-15 2000-10-24 Canon Inc 光磁気記録媒体
TW490666B (en) * 1999-04-22 2002-06-11 Tdk Corp Method of manufacturing a photo-recording medium and said photo-recording medium
US7016295B2 (en) * 2000-04-26 2006-03-21 Optical Disc Corporation Hybrid discs displaying certain dimensional values
CN1193355C (zh) 2000-05-17 2005-03-16 日本胜利株式会社 信息记录媒体及其记录方法
US6673411B2 (en) * 2000-10-23 2004-01-06 Mitsui Chemicals, Inc. Optical recording medium
JP2002150557A (ja) * 2000-11-10 2002-05-24 Pioneer Electronic Corp 光学式記録媒体の記録装置及び方法
US6733957B2 (en) * 2000-12-27 2004-05-11 Victor Company Of Japan Disk substrate and manufacturing method therefor, and disk manufactured by the disk substrate
JP2003006875A (ja) * 2001-06-22 2003-01-10 Sony Corp 光記録媒体
WO2003044791A2 (de) * 2001-11-20 2003-05-30 Interaxia Ag Einmal beschreibbarer, optischer datenspeicher, stamper für die herstellung des datenspeichers und verfahren zur herstellung des stampers
US7221642B2 (en) * 2002-01-18 2007-05-22 Koninklijke Philips Electronics N. V. Optical data storage medium and use of such medium
JP2005522810A (ja) * 2002-04-10 2005-07-28 ベリフィケーション テクノロジーズ インコーポレーション 光ディスクの内容の複製抑止法
JP4273705B2 (ja) * 2002-05-13 2009-06-03 日本電気株式会社 光ディスク媒体
DE60315484T2 (de) * 2002-08-30 2008-05-08 Asahi Glass Co., Ltd. Klebmittel und glasscheibe mit aufgeklebtem thermoplastischem elastomer
JP4105165B2 (ja) * 2002-12-13 2008-06-25 富士通株式会社 光磁気記録媒体及び光磁気記憶装置
US7700258B2 (en) * 2003-01-24 2010-04-20 Hewlett-Packard Development Company, L.P. Color forming compositions with improved marking sensitivity and image contrast and associated methods
JP2004241023A (ja) * 2003-02-04 2004-08-26 Fuji Photo Film Co Ltd 磁気転写用マスター担体
KR101049985B1 (ko) * 2003-08-07 2011-07-19 파나소닉 주식회사 광학적 정보 기록 매체와 그 제조 방법, 제조 장치, 기록재생 방법 및 기록 재생 장치
US7329630B2 (en) 2003-09-05 2008-02-12 Hewlett-Packard Development Company, L.P. Stabilizers and anti-fade agents for use in infrared sensitive leuco dye compositions
JP2005122774A (ja) * 2003-10-14 2005-05-12 Nec Corp 記録型光ディスク装置および光ディスク媒体
JP2005129108A (ja) * 2003-10-22 2005-05-19 Fuji Photo Film Co Ltd 光情報記録媒体
JP2005141809A (ja) * 2003-11-05 2005-06-02 Fuji Photo Film Co Ltd 光記録媒体および情報記録方法
JP2005190616A (ja) * 2003-12-26 2005-07-14 Taiyo Yuden Co Ltd 光情報記録媒体
JP2006040446A (ja) * 2004-07-28 2006-02-09 Toshiba Corp 光ディスク及び情報再生装置
JP4168423B2 (ja) * 2004-07-30 2008-10-22 太陽誘電株式会社 光情報記録媒体
JP2006236416A (ja) * 2005-02-22 2006-09-07 Toshiba Corp 記憶媒体、再生方法及び記録方法
US20090129231A1 (en) * 2005-08-31 2009-05-21 Fujifilm Corporation Method of manufacturing optical disc, stamper, signal processing method, signal processing apparatus, image drawing method ,Optical disc recording apparatus, and optical recording medium
EP1788565A1 (de) * 2005-11-16 2007-05-23 Thomson Licensing S.A. Verfahren für schnelles optisches Lesen und Aufzeichnen
JP2008010125A (ja) * 2006-06-30 2008-01-17 Toshiba Corp 情報記録媒体、及びディスク装置

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4519064A (en) * 1980-10-27 1985-05-21 Nippon Columbia Kabushikikaisha Optical record disc
NL8301632A (nl) * 1983-05-09 1984-12-03 Philips Nv Registratiedrager waarin langs optische weg informatie kan worden ingeschreven en uitgelezen.
EP0143992A1 (de) * 1983-11-02 1985-06-12 Ricoh Company, Ltd Optisches Aufzeichnungsmedium von Informationen
US5144552A (en) * 1986-07-25 1992-09-01 Ricoh Company, Ltd. Optical information storage medium having grooves and pits with specific depths, respectively
US4860273A (en) * 1986-07-31 1989-08-22 Fuji Photo Film Co., Ltd. Method of recording information and information recording medium employed for the same
JP2671139B2 (ja) * 1987-12-10 1997-10-29 富士写真フイルム株式会社 情報記録媒体,光情報記録方法および光情報記録再生方法
US5090009A (en) * 1988-07-30 1992-02-18 Taiyo Yuden Co., Ltd. Optical information recording medium
US4940618A (en) * 1988-07-30 1990-07-10 Taiyo Yuden Company, Ltd. Optical information recording medium
EP0376678B1 (de) * 1988-12-28 1995-03-01 Canon Kabushiki Kaisha Informationsaufzeichnungsträger
EP0385341B1 (de) * 1989-03-03 2000-05-24 TDK Corporation Medium für optische Datenspeicherung
US5075147A (en) * 1989-03-24 1991-12-24 Fuji Photo Film Co., Ltd. Method for optically recording information and information recorded medium
EP0404521A3 (de) * 1989-06-21 1991-05-02 Hitachi Maxell Ltd. Optischer Aufzeichnungsträger und dessen Herstellungsverfahren
MY105953A (en) * 1989-07-24 1995-02-28 Taiyo Yuden Kk Optical information recording medium and recording method.
NL9002024A (nl) * 1990-09-14 1992-04-01 Philips Nv Optisch registratie-element.
US5213859A (en) * 1990-12-21 1993-05-25 Tdk Corporation Optical recording disk
JPH0547044A (ja) * 1991-08-13 1993-02-26 Pioneer Electron Corp 追記型光デイスク

Also Published As

Publication number Publication date
EP0467716B1 (de) 1996-10-30
DE69122916D1 (de) 1996-12-05
EP0467716A3 (en) 1992-09-23
US5274623A (en) 1993-12-28
EP0467716A2 (de) 1992-01-22

Similar Documents

Publication Publication Date Title
DE69122916D1 (de) Informationsaufzeichnungsmedium und Verfahren zu seiner Herstellung
DE69122980D1 (de) Magnetischer Aufzeichnungsträger und Verfahren zu seiner Herstellung
DE68922185D1 (de) Optischer Informationsaufzeichnungsträger und Verfahren zu seiner Herstellung.
DE69303651D1 (de) Magnetischer Aufzeichnungsträger und Verfahren zu seiner Herstellung
DE69022826T2 (de) Magnetischer Aufzeichnungsträger und Verfahren zu seiner Herstellung.
DE69332352D1 (de) Magnetisches Aufzeichnungsmedium und Verfahren zu seiner Herstellung
DE69129813D1 (de) Flexibler magnetischer Aufzeichnungsträger und Verfahren zu seiner Herstellung
DE69427678T2 (de) Magnetooptisches Aufzeichnungsmedium und Verfahren zu seiner Herstellung
DE69030982T2 (de) Optisches Aufzeichnungsmedium und Verfahren zu seiner Herstellung
DE69327711T2 (de) Magnetooptisches aufzeichnungsmedium und verfahren zu seiner herstellung
DE69317504T2 (de) Magnetisches Aufzeichnungsmedium und Verfahren zu seiner Herstellung
DE69322232D1 (de) Informationen aufzeichnendes Medium, Verfahren zu seiner Herstellung und seine Verwendung
DE69309779T2 (de) Magnetisches Aufzeichnungsmedium und Verfahren zu seiner Herstellung
DE69603796D1 (de) Magnetisches Aufzeichnungsmedium und Verfahren zu seiner Herstellung
DE68929107D1 (de) Optisches Datenaufzeichnungsmedium und Verfahren zu seiner Herstellung.
DE69518786T2 (de) Informationsaufzeichnungsträger und Verfahren zu seiner Herstellung
DE69207784T2 (de) Magnetischer Aufzeichnungsträger und Verfahren zu seiner Herstellung
DE68919753D1 (de) Magnetischer Aufzeichnungsträger und Verfahren zu seiner Herstellung.
DE69614020T2 (de) Magnetisches Aufzeichnungsmedium und Verfahren zu seiner Herstellung
DE69102732T2 (de) Magnetischer Aufzeichnungsträger und Verfahren zu seiner Herstellung.
DE69020393D1 (de) Magnetooptischer Aufzeichnungsträger und Verfahren zu seiner Herstellung.
DE69417157D1 (de) Magnetischer Aufzeichnungsträger und Verfahren zu seiner Herstellung
DE69316484D1 (de) Magnetischer Aufzeichnungsträger und Verfahren zu seiner Herstellung
DE69019704D1 (de) Magnetischer Aufzeichnungsträger und Verfahren zu seiner Herstellung.
DE69318317D1 (de) Magnetooptisches Aufzeichnungsmedium und Verfahren zu seiner Herstellung

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: FUJIFILM CORP., TOKIO/TOKYO, JP

8339 Ceased/non-payment of the annual fee