KR870003475A - 광학정보기록매체 - Google Patents

광학정보기록매체

Info

Publication number
KR870003475A
KR870003475A KR1019860007937A KR860007937A KR870003475A KR 870003475 A KR870003475 A KR 870003475A KR 1019860007937 A KR1019860007937 A KR 1019860007937A KR 860007937 A KR860007937 A KR 860007937A KR 870003475 A KR870003475 A KR 870003475A
Authority
KR
South Korea
Prior art keywords
information recording
recording media
optical information
media
optical
Prior art date
Application number
KR1019860007937A
Other languages
English (en)
Other versions
KR900009187B1 (ko
Inventor
노보루 야마다
구니오 기무라
마사도시 다까오
스스무 사나이
Original Assignee
마쯔시다덴기산교 가부시기가이샤
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 JP60211470A external-priority patent/JPS6273438A/ja
Priority claimed from JP60211471A external-priority patent/JPS6273439A/ja
Priority claimed from JP61053034A external-priority patent/JP2584741B2/ja
Priority claimed from JP61053033A external-priority patent/JP2592800B2/ja
Application filed by 마쯔시다덴기산교 가부시기가이샤 filed Critical 마쯔시다덴기산교 가부시기가이샤
Publication of KR870003475A publication Critical patent/KR870003475A/ko
Application granted granted Critical
Publication of KR900009187B1 publication Critical patent/KR900009187B1/ko

Links

Classifications

    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record 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
    • G11B7/243—Record 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 inorganic materials only, e.g. ablative layers
    • G11B7/2433—Metals or elements of Groups 13, 14, 15 or 16 of the Periodic Table, e.g. B, Si, Ge, As, Sb, Bi, Se or Te
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record 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
    • G11B7/243—Record 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 inorganic materials only, e.g. ablative layers
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record 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
    • G11B7/243—Record 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 inorganic materials only, e.g. ablative layers
    • G11B2007/24302—Metals or metalloids
    • G11B2007/24312—Metals or metalloids group 14 elements (e.g. Si, Ge, Sn)
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record 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
    • G11B7/243—Record 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 inorganic materials only, e.g. ablative layers
    • G11B2007/24302—Metals or metalloids
    • G11B2007/24314—Metals or metalloids group 15 elements (e.g. Sb, Bi)
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record 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
    • G11B7/243—Record 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 inorganic materials only, e.g. ablative layers
    • G11B2007/24302—Metals or metalloids
    • G11B2007/24316—Metals or metalloids group 16 elements (i.e. chalcogenides, Se, Te)
    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0045—Recording
    • G11B7/00454—Recording involving phase-change effects
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record 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
    • G11B7/253—Record 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
    • G11B7/2531—Record 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 glass
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record 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
    • G11B7/253—Record 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
    • G11B7/2533—Record 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
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record 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
    • G11B7/257—Record 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 layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
    • 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
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
    • G11B7/266—Sputtering or spin-coating layers
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
KR1019860007937A 1985-09-25 1986-09-23 광학정보기록매체 KR900009187B1 (ko)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP60211470A JPS6273438A (ja) 1985-09-25 1985-09-25 光学情報記録部材
JP60211471A JPS6273439A (ja) 1985-09-25 1985-09-25 光学情報記録部材
JP211471 1985-09-25
JP211470 1985-09-25
JP61053034A JP2584741B2 (ja) 1986-03-11 1986-03-11 書換え可能な光学情報記録部材
JP61053033A JP2592800B2 (ja) 1986-03-11 1986-03-11 光学情報記録部材
JP53034 1986-03-11
JP53033 1986-03-11

Publications (2)

Publication Number Publication Date
KR870003475A true KR870003475A (ko) 1987-04-17
KR900009187B1 KR900009187B1 (ko) 1990-12-24

Family

ID=27462854

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019860007937A KR900009187B1 (ko) 1985-09-25 1986-09-23 광학정보기록매체

Country Status (5)

Country Link
US (4) US5278011A (ko)
EP (2) EP0355865B1 (ko)
KR (1) KR900009187B1 (ko)
CN (1) CN1010519B (ko)
DE (2) DE3689815T2 (ko)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1010519B (zh) * 1985-09-25 1990-11-21 松下电器产业株式会社 可逆的光学情报记录介质
JPS63251290A (ja) * 1987-04-08 1988-10-18 Hitachi Ltd 光記録媒体と記録・再生方法及びその応用
DE3885156T2 (de) * 1987-06-11 1994-03-17 Asahi Chemical Ind Verfahren zum Aufzeichnen und Löschen von Daten.
US5273861A (en) * 1987-12-04 1993-12-28 Matsushita Electric Industrial Co., Ltd. Optical information recording medium, method of making an optical information recording medium and method of recording/reproducing optical information
JPH081707B2 (ja) * 1987-12-04 1996-01-10 松下電器産業株式会社 光学的情報記録媒体
US5063097A (en) * 1988-12-16 1991-11-05 Toray Industries, Inc. Optical recording medium
US5268254A (en) * 1989-02-28 1993-12-07 Fuji Xerox Co., Ltd. Optical recording medium
DE69023380T2 (de) * 1989-02-28 1996-07-18 Fuji Xerox Co Ltd Optischer Aufzeichnungsträger.
US5128099A (en) * 1991-02-15 1992-07-07 Energy Conversion Devices, Inc. Congruent state changeable optical memory material and device
CN1303588C (zh) * 1991-06-04 2007-03-07 三菱电机株式会社 光学数据存贮介质
JPH10502202A (ja) * 1994-06-23 1998-02-24 フィリップス エレクトロニクス ネムローゼ フェンノートシャップ 光学的情報担体
JPH0917032A (ja) * 1995-06-27 1997-01-17 Toshiba Corp 光情報記録媒体
US6821707B2 (en) * 1996-03-11 2004-11-23 Matsushita Electric Industrial Co., Ltd. Optical information recording medium, producing method thereof and method of recording/erasing/reproducing information
CN1132166C (zh) * 1997-11-07 2003-12-24 皇家菲利浦电子有限公司 可重写锗－锑－碲合金光信息介质
JP4435429B2 (ja) * 1999-03-15 2010-03-17 パナソニック株式会社 情報記録媒体
TW484126B (en) 1999-03-26 2002-04-21 Matsushita Electric Ind Co Ltd Manufacturing and recording regeneration method for information record medium
CN1217324C (zh) 1999-05-19 2005-08-31 三菱化学株式会社 光记录方法
TW487682B (en) 2000-08-10 2002-05-21 Nat Science Council Rewritable phase-change type optical information recording composition and optical disk containing the same
EP1220214B1 (en) * 2000-12-19 2004-08-11 National Science Council Rewritable phase-change optical recording composition and rewritable phase-change optical disc
EP1428212A4 (en) * 2001-09-01 2008-01-09 Energy Conversion Devices Inc STORING DATA INCREASED IN OPTICAL MEMORY AND RECOVERY SYSTEMS USING BLUE LASERS AND / OR PLASMON LENSES
US7402851B2 (en) * 2003-02-24 2008-07-22 Samsung Electronics Co., Ltd. Phase changeable memory devices including nitrogen and/or silicon and methods for fabricating the same
US7115927B2 (en) * 2003-02-24 2006-10-03 Samsung Electronics Co., Ltd. Phase changeable memory devices
US7425735B2 (en) * 2003-02-24 2008-09-16 Samsung Electronics Co., Ltd. Multi-layer phase-changeable memory devices
JP4181490B2 (ja) * 2003-03-25 2008-11-12 松下電器産業株式会社 情報記録媒体とその製造方法
TW200529414A (en) * 2004-02-06 2005-09-01 Renesas Tech Corp Storage
TW200601322A (en) * 2004-04-07 2006-01-01 Hitachi Maxell Information recording medium
WO2006011285A1 (ja) 2004-07-28 2006-02-02 Matsushita Electric Industrial Co., Ltd. 情報記録媒体
CN101194310B (zh) 2005-06-07 2011-03-02 松下电器产业株式会社 信息记录介质及其制造方法
TWI312998B (en) * 2005-12-23 2009-08-01 Ind Tech Res Inst Phase-change recording layer and method of manufacturing the same and phase-change recording cell using such recording layer
KR100782482B1 (ko) * 2006-05-19 2007-12-05 삼성전자주식회사 ＧｅＢｉＴｅ막을 상변화 물질막으로 채택하는 상변화 기억 셀, 이를 구비하는 상변화 기억소자, 이를 구비하는 전자 장치 및 그 제조방법
US8133566B2 (en) * 2006-08-08 2012-03-13 Panasonic Corporation Information recording medium, its manufacturing method, and sputtering target
KR100810615B1 (ko) * 2006-09-20 2008-03-06 삼성전자주식회사 고온 상전이 패턴을 구비한 상전이 메모리소자 및 그제조방법
US8273438B2 (en) * 2007-02-09 2012-09-25 Panasonic Corporation Information recording medium, process for producing the information recording medium, sputtering target and film forming apparatus
JP2009178974A (ja) * 2008-01-31 2009-08-13 Toshiba Corp 情報記録媒体
WO2010026744A1 (ja) * 2008-09-05 2010-03-11 パナソニック株式会社 情報記録媒体の初期化方法、情報記録媒体の初期化装置および情報記録媒体
JPWO2010041373A1 (ja) * 2008-10-06 2012-03-01 パナソニック株式会社 情報記録媒体とその製造方法、及びスパッタリングターゲット
WO2011024381A1 (ja) * 2009-08-31 2011-03-03 パナソニック株式会社 情報記録媒体とその製造方法
CN103650043B (zh) 2011-08-30 2014-11-26 松下电器产业株式会社 光学信息记录媒质及其制造方法
DE102018203241A1 (de) 2018-03-05 2019-09-05 Carl Zeiss Smt Gmbh Optisches Element, sowie Verfahren zur Korrektur der Wellenfrontwirkung eines optischen Elements

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3530441A (en) * 1969-01-15 1970-09-22 Energy Conversion Devices Inc Method and apparatus for storing and retrieving information
US3868651A (en) * 1970-08-13 1975-02-25 Energy Conversion Devices Inc Method and apparatus for storing and reading data in a memory having catalytic material to initiate amorphous to crystalline change in memory structure
NL8301956A (nl) * 1983-06-02 1985-01-02 Optical Storage Int Optisch registratie element.
JPS6034897A (ja) * 1983-08-08 1985-02-22 Nippon Telegr & Teleph Corp <Ntt> 書替可能光記録媒体
JPS6042095A (ja) * 1983-08-19 1985-03-06 Hitachi Ltd 情報の記録用部材およびその製造方法
JPS6048397A (ja) * 1983-08-29 1985-03-16 Nippon Telegr & Teleph Corp <Ntt> 光学的記録媒体およびその製造方法
JPS6058893A (ja) * 1983-09-12 1985-04-05 Nippon Telegr & Teleph Corp <Ntt> 光記録媒体
JPS60135951A (ja) * 1983-12-24 1985-07-19 Fujitsu Ltd パタ−ン形成法
JPS60155496A (ja) * 1984-01-26 1985-08-15 Sony Corp 情報記録媒体
JPS60155495A (ja) * 1984-01-26 1985-08-15 Sony Corp 光学情報記録媒体
JPS60157894A (ja) * 1984-01-27 1985-08-19 Nippon Columbia Co Ltd 光情報記録媒体
JPS60219646A (ja) * 1984-04-16 1985-11-02 Nippon Columbia Co Ltd 光情報記録媒体
JPS60234248A (ja) * 1984-05-07 1985-11-20 Nippon Columbia Co Ltd 光情報記録媒体
US4656079A (en) * 1984-06-15 1987-04-07 Matsushita Electric Industrial Co., Ltd. Reversible optical information recording medium
JPS6131291A (ja) * 1984-07-24 1986-02-13 Daicel Chem Ind Ltd 光学的情報記録媒体
JPS6189889A (ja) * 1984-10-11 1986-05-08 Nippon Columbia Co Ltd 光情報記録媒体
CN1008845B (zh) * 1984-12-05 1990-07-18 富士通株式会社 光学信息记录介质及信息的记录与擦抹的方法
EP0195532B1 (en) * 1985-02-22 1990-05-09 Asahi Kasei Kogyo Kabushiki Kaisha An information recording medium
US4787077A (en) * 1985-08-15 1988-11-22 International Business Machines Corporation Process for optically storing information using materials having a single phase in both the crystalline state and the amorphous state
CN1010519B (zh) * 1985-09-25 1990-11-21 松下电器产业株式会社 可逆的光学情报记录介质
JPS6431291A (en) * 1987-07-27 1989-02-01 Oki Electric Ind Co Ltd Automatic goods renting apparatus
JPS6489889A (en) * 1987-09-30 1989-04-05 Toshiba Corp User's termination system
JP2696858B2 (ja) * 1987-10-28 1998-01-14 松下電器産業株式会社 光学情報記録再生消去部材
US5238572A (en) * 1993-01-25 1993-08-24 Betz Laboratories, Inc. Enzyme treatment for industrial slime control

Also Published As

Publication number Publication date
EP0217293A1 (en) 1987-04-08
US20010019810A1 (en) 2001-09-06
US5278011A (en) 1994-01-11
EP0355865A3 (en) 1990-03-28
CN1010519B (zh) 1990-11-21
EP0355865B1 (en) 1994-06-01
EP0217293B1 (en) 1994-04-27
EP0355865A2 (en) 1990-02-28
DE3689815D1 (de) 1994-06-01
USRE42222E1 (en) 2011-03-15
DE3689815T2 (de) 1994-11-17
DE3689886T2 (de) 1995-01-19
US6268107B1 (en) 2001-07-31
DE3689886D1 (de) 1994-07-07
CN86107003A (zh) 1987-08-19
KR900009187B1 (ko) 1990-12-24

Similar Documents

Publication Publication Date Title
KR870003475A (ko) 광학정보기록매체
GB2165658B (en) Optical information recording media
DE3671122D1 (de) Informationsaufzeichnungsmedium.
GB2155811B (en) Optical information recording medium
GB2162332B (en) Optical information recording medium
KR870010505A (ko) 광기록 매체
DE3680057D1 (de) Beidseitiges optisches aufzeichnungsmedium.
KR890008770A (ko) 광정보 기록매체
DE3883174D1 (de) Optisches informationsaufzeichnungsmedium.
DE3577491D1 (de) Optisches informationsaufzeichnungsmedium.
GB2198278B (en) Optical information record media
GB2157013B (en) Optical information recording medium
DE3684663D1 (de) Optisches informationsaufnahme- und -wiedergabegeraet.
EP0243958A3 (en) Optical information recording medium
KR870013506U (ko) 정보기록 매체용 포장부재
GB8630004D0 (en) Optical information recording medium
DE3856472D1 (de) Datenaufzeichnungsträger
GB2152686B (en) Optical information recording medium
GB2163863B (en) Optical information recording medium
GB8607750D0 (en) Optical information recording medium
DE3683166D1 (de) Optisches aufzeichnungsmedium.
GB2156090B (en) Optical information recording medium
DE3684102D1 (de) Optisches aufzeichnungsmedium.
DE3679249D1 (de) Optisches informationsspeicherungsmedium.
GB2197345B (en) Optical information record media

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20051208

Year of fee payment: 16

EXPY Expiration of term