DE3575628D1 - Optisches speichermedium. - Google Patents

Optisches speichermedium.

Info

Publication number
DE3575628D1
DE3575628D1 DE8585902157T DE3575628T DE3575628D1 DE 3575628 D1 DE3575628 D1 DE 3575628D1 DE 8585902157 T DE8585902157 T DE 8585902157T DE 3575628 T DE3575628 T DE 3575628T DE 3575628 D1 DE3575628 D1 DE 3575628D1
Authority
DE
Germany
Prior art keywords
storage medium
optical storage
optical
medium
storage
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
DE8585902157T
Other languages
English (en)
Inventor
Kenryo Tdk Corporation Namba
Shigeru Tdk Corporation Asami
Toshiki Tdk Corporation Aoi
Kazuo Tdk Corporatio Takahashi
Akihiko Tdk Corporatio Kuroiwa
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.)
TDK Corp
Original Assignee
TDK 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 JP59090748A external-priority patent/JPS60234886A/ja
Priority claimed from JP59091567A external-priority patent/JPS60234892A/ja
Priority claimed from JP59132702A external-priority patent/JPS6111292A/ja
Application filed by TDK Corp filed Critical TDK Corp
Application granted granted Critical
Publication of DE3575628D1 publication Critical patent/DE3575628D1/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
    • 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
    • G11B7/244—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 organic materials only
    • G11B7/249—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 organic materials only containing organometallic compounds
    • G11B7/2495—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 organic materials only containing organometallic compounds as anions
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/0008—Methine or polymethine dyes, e.g. cyanine dyes substituted on the polymethine chain
    • C09B23/0016—Methine or polymethine dyes, e.g. cyanine dyes substituted on the polymethine chain the substituent being a halogen atom
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/0008—Methine or polymethine dyes, e.g. cyanine dyes substituted on the polymethine chain
    • C09B23/0041—Methine or polymethine dyes, e.g. cyanine dyes substituted on the polymethine chain the substituent being bound through a nitrogen atom
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/0066—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain being part of a carbocyclic ring,(e.g. benzene, naphtalene, cyclohexene, cyclobutenene-quadratic acid)
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/0075—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain being part of an heterocyclic ring
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/02—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups
    • C09B23/06—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups three >CH- groups, e.g. carbocyanines
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/02—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups
    • C09B23/08—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups more than three >CH- groups, e.g. polycarbocyanines
    • C09B23/083—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups more than three >CH- groups, e.g. polycarbocyanines five >CH- groups
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/02—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups
    • C09B23/08—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups more than three >CH- groups, e.g. polycarbocyanines
    • C09B23/086—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups more than three >CH- groups, e.g. polycarbocyanines more than five >CH- groups
    • 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
    • G11B7/244—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 organic materials only
    • G11B7/246—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 organic materials only containing dyes
    • 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
    • G11B7/244—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 organic materials only
    • G11B7/246—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 organic materials only containing dyes
    • G11B7/247—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 organic materials only containing dyes methine or polymethine dyes
    • G11B7/2472—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 organic materials only containing dyes methine or polymethine dyes cyanine
    • 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
    • G11B7/244—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 organic materials only
    • G11B7/246—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 organic materials only containing dyes
    • G11B2007/24612—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 organic materials only containing dyes two or more dyes in one layer
    • 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
    • G11B7/253—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
    • G11B7/2534—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 polycarbonates [PC]
    • 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
    • G11B7/256—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 improving adhesion between 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
    • 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
    • Y10S430/165—Thermal imaging composition

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
DE8585902157T 1984-05-07 1985-05-02 Optisches speichermedium. Expired - Lifetime DE3575628D1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP59090748A JPS60234886A (ja) 1984-05-07 1984-05-07 光記録媒体
JP59091567A JPS60234892A (ja) 1984-05-08 1984-05-08 光記録媒体
JP59132702A JPS6111292A (ja) 1984-06-27 1984-06-27 光記録媒体
PCT/JP1985/000253 WO1985005078A1 (en) 1984-05-07 1985-05-02 Optical recording medium

Publications (1)

Publication Number Publication Date
DE3575628D1 true DE3575628D1 (de) 1990-03-01

Family

ID=27306532

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585902157T Expired - Lifetime DE3575628D1 (de) 1984-05-07 1985-05-02 Optisches speichermedium.

Country Status (4)

Country Link
US (1) US4713314A (de)
EP (1) EP0181941B1 (de)
DE (1) DE3575628D1 (de)
WO (1) WO1985005078A1 (de)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5670295A (en) * 1982-07-30 1997-09-23 Namba; Kenryo Optical recording medium
DE3529061A1 (de) * 1984-08-13 1986-02-13 Ricoh Co., Ltd., Tokio/Tokyo Optisches informationsaufzeichnungsmaterial
US4885228A (en) * 1986-07-29 1989-12-05 Fuji Photo Film Co., Ltd. Optical information recording medium
JPS6357286A (ja) * 1986-08-28 1988-03-11 Fuji Photo Film Co Ltd 情報記録媒体
JPS63199248A (ja) * 1987-02-13 1988-08-17 Fuji Photo Film Co Ltd 有機基体物質を光に対して安定化する方法
FR2613111B1 (fr) * 1987-03-23 1994-05-06 Toyo Boseki Kk Support d'enregistrement optique
NL8700904A (nl) * 1987-04-16 1988-11-16 Philips Nv Halfgeleiderlaserinrichting en werkwijze voor het vervaardigen daarvan.
JPH0798421B2 (ja) * 1987-06-09 1995-10-25 富士写真フイルム株式会社 光情報記録媒体
US5182186A (en) * 1987-09-29 1993-01-26 Fuji Photo Film Co., Ltd. Optical information recording medium
KR0171182B1 (ko) * 1988-07-18 1999-04-15 와따나베 히로시 정보기록메체 및 그 제조방법
JP2893184B2 (ja) * 1988-08-05 1999-05-17 旭電化工業株式会社 光学記録材料
CA2026758A1 (en) * 1989-10-03 1991-04-04 Takeyuki Kawaguchi Optical data storage medium formed of uv-curable resin and process for the production thereof
JPH03203692A (ja) * 1989-12-29 1991-09-05 Pioneer Electron Corp 光記録媒体
JPH03203693A (ja) * 1989-12-29 1991-09-05 Pioneer Electron Corp 光記録媒体
DE69130080T2 (de) * 1990-05-21 1999-05-12 Tdk Corp Optisches Aufzeichnungsmedium
DE69031802T2 (de) * 1990-08-17 1998-06-25 Ibm Verfahren zur Herstellung gerillter Substrate
JP3026356B2 (ja) * 1990-10-04 2000-03-27 パイオニア株式会社 光記録媒体
JP3026357B2 (ja) * 1990-10-04 2000-03-27 パイオニア株式会社 光記録媒体
US5348841A (en) * 1990-11-19 1994-09-20 Industrial Technology Research Institute Organic dye-in-polymer (DIP) medium for write-once-read-many (WORM) optical discs
US5399459A (en) * 1993-10-26 1995-03-21 Eastman Kodak Company Thermally bleachable dyes for laser ablative imaging
US6361916B1 (en) 1999-12-14 2002-03-26 Eastman Kodak Company Loaded latex compositions with dye and stabilizer
TW572969B (en) * 2000-02-10 2004-01-21 Hayashibara Biochem Lab Trimethine cyanine dye, light absorbent, light-resistant improver and optical recording medium containing same, and process for producing same
IT1318421B1 (it) * 2000-03-23 2003-08-25 Univ Milano Bicocca Composti eteroaromatici ad elevata prestazione come limitatori otticiin soluzione tramite assorbimento e due fotoni.
US20030064322A1 (en) * 2000-12-19 2003-04-03 Yoshinori Koyama Light absorbing agent
US6706460B1 (en) 2002-11-20 2004-03-16 Eastman Kodak Company Stable IR dye composition for invisible marking
US6689518B1 (en) 2002-11-20 2004-02-10 Eastman Kodak Company Photographic display elements comprising stable IR dye compositions for invisible marking
US6767677B2 (en) 2002-11-20 2004-07-27 Eastman Kodak Company Display element with a backprint comprising a squarine dye
TWI244494B (en) * 2003-05-14 2005-12-01 Ritek Corp Optical recording medium dye
JP2007522973A (ja) * 2004-02-24 2007-08-16 チバ　スペシャルティ　ケミカルズ　ホールディング　インコーポレーテッド 青色レーザーを使用して書き込みが可能な光学記録材料
JP2006289877A (ja) * 2005-04-14 2006-10-26 Toshiba Corp 情報記憶媒体、再生方法及び記録方法
TW200727287A (en) * 2006-01-05 2007-07-16 Prodisc Technology Inc Optical information storage medium
JP4621646B2 (ja) * 2006-09-13 2011-01-26 株式会社東芝 ホログラフィックデータストレージ媒体
TW200838941A (en) * 2007-03-16 2008-10-01 Yen-Cheng Tsai Cyanine dye and utilization thereof
US8507689B2 (en) * 2009-05-28 2013-08-13 Adeka Corporation Organic salt compound, and optical recording material and optical recording medium using the organic salt compound
TWI418595B (zh) 2011-09-07 2013-12-11 Orgchem Technologies Inc 三次甲基花青化合物及其應用
US20130087740A1 (en) 2011-10-11 2013-04-11 Thomas J. Widzinski Infrared fluorescent composition having polyvinyl acetal binder

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1035769A (en) * 1973-11-29 1978-08-01 Wendell F. Smith (Jr.) Stabilized dyes
JPS6023996B2 (ja) * 1980-06-26 1985-06-10 三井東圧化学株式会社 レ−ザ光記録／読取媒体用組成物
JPS5856239A (ja) * 1981-09-28 1983-04-02 Tdk Corp 光記録媒体
US4465767A (en) * 1981-11-27 1984-08-14 Ricoh Company, Ltd. Optical information recording medium
JPS58219091A (ja) * 1982-06-14 1983-12-20 Canon Inc 光学記録媒体
JPS58175693A (ja) * 1982-04-08 1983-10-14 Ricoh Co Ltd 高密度光情報記録媒体
JPS5955794A (ja) * 1982-09-25 1984-03-30 Tdk Corp 光記録媒体
JPS5978341A (ja) * 1982-10-28 1984-05-07 Ricoh Co Ltd 光学的情報記録媒体
JPS59177776A (ja) * 1983-03-25 1984-10-08 Matsushita Electric Ind Co Ltd 光学式情報記録装置
DE3468893D1 (en) * 1983-12-01 1988-02-25 Tdk Corp Photostable cyanine dye and optical recording medium

Also Published As

Publication number Publication date
EP0181941B1 (de) 1990-01-24
US4713314A (en) 1987-12-15
EP0181941A1 (de) 1986-05-28
WO1985005078A1 (en) 1985-11-21
EP0181941A4 (de) 1987-12-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: VOGESER, W., DIPL.-ING., PAT.-ANW., 8000 MUENCHEN BOECKER, J., DIPL.-ING. DR.-ING., PAT.- U. RECHTSANW., 6000 FRANKFURT ALBER, N., DIPL.-ING. UNIV. DIPL.-WIRTSCH.-ING.UNIV STRYCH, W., DR.RER.NAT., PAT.-ANWAELTE, 8000 MUENCHEN