GB2193659B - Optical information recording medium - Google Patents

Optical information recording medium

Info

Publication number
GB2193659B
GB2193659B GB8717802A GB8717802A GB2193659B GB 2193659 B GB2193659 B GB 2193659B GB 8717802 A GB8717802 A GB 8717802A GB 8717802 A GB8717802 A GB 8717802A GB 2193659 B GB2193659 B GB 2193659B
Authority
GB
United Kingdom
Prior art keywords
recording medium
information recording
optical information
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
Application number
GB8717802A
Other languages
English (en)
Other versions
GB8717802D0 (en
GB2193659A (en
Inventor
Tsutomu Satoh
Tatsuya Eida
Keiko Ichinose
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 JP61175515A external-priority patent/JPH0822613B2/ja
Priority claimed from JP61210528A external-priority patent/JPH0822615B2/ja
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of GB8717802D0 publication Critical patent/GB8717802D0/en
Publication of GB2193659A publication Critical patent/GB2193659A/en
Application granted granted Critical
Publication of GB2193659B publication Critical patent/GB2193659B/en
Expired 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
    • 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
    • C09B55/00—Azomethine dyes
    • C09B55/009—Azomethine dyes, the C-atom of the group -C=N- being part of a ring (Image)
    • 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
    • C09B57/00—Other synthetic dyes of known constitution
    • C09B57/10—Metal complexes of organic compounds not being dyes in uncomplexed form
    • 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
    • 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
    • C09B69/00—Dyes not provided for by a single group of this subclass
    • C09B69/02—Dyestuff salts, e.g. salts of acid dyes with basic 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
GB8717802A 1986-07-28 1987-07-28 Optical information recording medium Expired GB2193659B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP61175515A JPH0822613B2 (ja) 1986-07-28 1986-07-28 光情報記録媒体
JP61210528A JPH0822615B2 (ja) 1986-09-09 1986-09-09 光情報記録媒体

Publications (3)

Publication Number Publication Date
GB8717802D0 GB8717802D0 (en) 1987-09-03
GB2193659A GB2193659A (en) 1988-02-17
GB2193659B true GB2193659B (en) 1990-04-04

Family

ID=26496762

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8717802A Expired GB2193659B (en) 1986-07-28 1987-07-28 Optical information recording medium

Country Status (2)

Country Link
DE (1) DE3724981A1 (enrdf_load_stackoverflow)
GB (1) GB2193659B (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0321923B1 (en) * 1987-12-21 1992-07-15 EASTMAN KODAK COMPANY (a New Jersey corporation) Infrared absorbing cyanine dyes for dye-donor element used in laser-induced thermal dye transfer
JP2640502B2 (ja) * 1988-08-23 1997-08-13 株式会社リコー 光記録媒体
JPH03203692A (ja) * 1989-12-29 1991-09-05 Pioneer Electron Corp 光記録媒体
JP3026356B2 (ja) * 1990-10-04 2000-03-27 パイオニア株式会社 光記録媒体
US5605732A (en) * 1992-01-06 1997-02-25 Canon Kabushiki Kaisha Aminium salt compound and optical recording medium
JP2003039831A (ja) * 2001-08-01 2003-02-13 Fuji Photo Film Co Ltd 光情報記録媒体および新規イモニウム化合物

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3529061A1 (de) * 1984-08-13 1986-02-13 Ricoh Co., Ltd., Tokio/Tokyo Optisches informationsaufzeichnungsmaterial
DE3537539A1 (de) * 1984-10-23 1986-04-24 Ricoh Co., Ltd., Tokio/Tokyo Optisches informationsaufzeichnungsmaterial

Also Published As

Publication number Publication date
GB8717802D0 (en) 1987-09-03
DE3724981A1 (de) 1988-02-04
GB2193659A (en) 1988-02-17
DE3724981C2 (enrdf_load_stackoverflow) 1989-06-15

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19990728