DE69722474D1 - Medium für optische Datenspeicherung - Google Patents

Medium für optische Datenspeicherung

Info

Publication number
DE69722474D1
DE69722474D1 DE69722474T DE69722474T DE69722474D1 DE 69722474 D1 DE69722474 D1 DE 69722474D1 DE 69722474 T DE69722474 T DE 69722474T DE 69722474 T DE69722474 T DE 69722474T DE 69722474 D1 DE69722474 D1 DE 69722474D1
Authority
DE
Germany
Prior art keywords
medium
data storage
optical data
optical
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 - Fee Related
Application number
DE69722474T
Other languages
English (en)
Other versions
DE69722474T2 (de
Inventor
Yasuhiro Higashi
Tatsuya Tomura
Noboru Sasa
Tsutomu Satoh
Yasunobu Ueno
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 JP8177545A external-priority patent/JPH10860A/ja
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of DE69722474D1 publication Critical patent/DE69722474D1/de
Application granted granted Critical
Publication of DE69722474T2 publication Critical patent/DE69722474T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G11B7/246—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
    • G11B7/248—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 porphines; azaporphines, e.g. phthalocyanines
    • 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
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0033—Blends of pigments; Mixtured crystals; Solid solutions
    • C09B67/0034—Mixtures of two or more pigments or dyes of the same type
    • C09B67/0035—Mixtures of phthalocyanines
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
DE69722474T 1996-01-29 1997-01-29 Medium für optische Datenspeicherung Expired - Fee Related DE69722474T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP3429196 1996-01-29
JP3429196 1996-01-29
JP8177545A JPH10860A (ja) 1996-06-18 1996-06-18 光記録媒体
JP17754596 1996-06-18

Publications (2)

Publication Number Publication Date
DE69722474D1 true DE69722474D1 (de) 2003-07-10
DE69722474T2 DE69722474T2 (de) 2004-05-06

Family

ID=26373071

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69722474T Expired - Fee Related DE69722474T2 (de) 1996-01-29 1997-01-29 Medium für optische Datenspeicherung

Country Status (4)

Country Link
US (1) US5998093A (de)
EP (1) EP0786768B1 (de)
DE (1) DE69722474T2 (de)
ES (1) ES2200088T3 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3659548B2 (ja) * 1997-07-22 2005-06-15 株式会社リコー 光記録媒体
US6762008B2 (en) 1999-07-06 2004-07-13 Ricoh Company, Ltd. Optical recording medium
US6737143B2 (en) 2001-06-14 2004-05-18 Ricoh Company Ltd. Optical recording medium, optical recording method and optical recording device
JP4124407B2 (ja) * 2001-09-13 2008-07-23 株式会社リコー 二値化装置
CN1193363C (zh) 2001-10-25 2005-03-16 株式会社理光 光记录媒体
BR0214163A (pt) * 2001-11-15 2004-09-28 Ciba Sc Holding Ag Meios de armazenamento ópico de alta capacidade escrevìveis contendo complexos metálicos
US6794005B2 (en) 2002-02-12 2004-09-21 Ricoh Company, Ltd. Optical recording medium, optical recording method and optical recording device
US6933032B2 (en) * 2003-04-15 2005-08-23 Ricoh Company, Ltd. Write-once-read-many optical recording media and process for recording and reproducing information on the media
JP4137691B2 (ja) 2003-04-30 2008-08-20 株式会社リコー 光記録媒体
US7125644B2 (en) * 2003-08-11 2006-10-24 Hewlett-Packard Development Company, L.P. Systems and methods for storing data on an optical disk
PL1621584T3 (pl) * 2004-07-29 2007-06-29 Clariant Finance Bvi Ltd Ligandy azowe na bazie aminoantypiryny i ich kompleksy z metalami do stosowania w optycznych nośnikach rejestrujących
US7005519B1 (en) * 2004-08-18 2006-02-28 Academia Sinica Tetraazaporphyrin compounds
US8859184B2 (en) * 2005-07-28 2014-10-14 Ricoh Company, Ltd. Write-once-read-many optical disk having low-to-high recording property accommodating short wavelength recording
JP4810519B2 (ja) * 2007-09-14 2011-11-09 株式会社リコー 多層式追記型光記録媒体及びその記録方法、記録装置
JP7297258B2 (ja) * 2017-12-27 2023-06-26 山田化学工業株式会社 テトラアザポルフィリン化合物

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3509146A (en) * 1967-07-03 1970-04-28 Xerox Corp Process of preparing phthalocyanine and heterocyclic analogues
US4656121A (en) * 1984-02-06 1987-04-07 Ricoh Co., Ltd. Optical information recording medium
US4626496A (en) * 1984-06-19 1986-12-02 Ricoh Co., Ltd. Optical information recording medium
DE3524143A1 (de) * 1984-07-05 1986-02-06 Ricoh Co., Ltd., Tokio/Tokyo Aufzeichnungsmaterial fuer optische informationen
FR2569034B1 (fr) * 1984-08-13 1990-08-10 Ricoh Kk Milieu d'enregistrement optique d'informations
DE3537539A1 (de) * 1984-10-23 1986-04-24 Ricoh Co., Ltd., Tokio/Tokyo Optisches informationsaufzeichnungsmaterial
JPS61143191A (ja) * 1984-12-18 1986-06-30 Ricoh Co Ltd 光情報記録媒体
US4735839A (en) * 1985-07-10 1988-04-05 Ricoh Co., Ltd. Optical information recording medium
JPH0724114B2 (ja) * 1985-12-12 1995-03-15 株式会社リコー 光情報記録媒体
DE3622294A1 (de) * 1986-07-03 1988-01-07 Basf Ag Optisches aufzeichnungsmedium
JPS63312889A (ja) * 1987-06-17 1988-12-21 Agency Of Ind Science & Technol 光記録材料
DE3888820T2 (de) * 1988-01-22 1994-10-27 Mitsubishi Chem Ind Phthalocyaninbestandteil und dieses verwendender optischer Speicherstoff.
JP2670616B2 (ja) * 1988-04-28 1997-10-29 株式会社リコー スクアリリウム系化合物及びそれを用いた光情報記録媒体
US5149819A (en) * 1988-04-28 1992-09-22 Ricoh Company, Ltd. Squarylium compounds and optical information recording medium using the same
US5002812A (en) * 1988-06-15 1991-03-26 Ricoh Company, Ltd. Optical information recording medium, information recording method and optical information recording system using the medium
JP2640502B2 (ja) * 1988-08-23 1997-08-13 株式会社リコー 光記録媒体
US5256794A (en) * 1989-12-07 1993-10-26 Ricoh Company, Ltd. Squarylium compounds
US5510229A (en) * 1989-07-12 1996-04-23 Ricoh Company, Ltd. Optical information recording medium using squarylium compounds
JPH03256240A (ja) * 1990-03-06 1991-11-14 Ricoh Co Ltd 光情報記録媒体
DE4126461C2 (de) * 1991-08-09 1994-09-29 Rainer Hoppe Farbstoffbeladenes anorganisches Molekularsieb, Verfahren zu seiner Herstellung und seine Verwendung
JPH07268227A (ja) * 1994-03-31 1995-10-17 Tdk Corp フタロシアニン系色素およびこれを用いた光記録媒体

Also Published As

Publication number Publication date
US5998093A (en) 1999-12-07
EP0786768A3 (de) 1997-11-12
EP0786768A2 (de) 1997-07-30
ES2200088T3 (es) 2004-03-01
EP0786768B1 (de) 2003-06-04
DE69722474T2 (de) 2004-05-06

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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