JPH0440194B2 - - Google Patents

Info

Publication number
JPH0440194B2
JPH0440194B2 JP57182589A JP18258982A JPH0440194B2 JP H0440194 B2 JPH0440194 B2 JP H0440194B2 JP 57182589 A JP57182589 A JP 57182589A JP 18258982 A JP18258982 A JP 18258982A JP H0440194 B2 JPH0440194 B2 JP H0440194B2
Authority
JP
Japan
Prior art keywords
ring
optical recording
recording medium
carbon atoms
formula
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
JP57182589A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5971895A (ja
Inventor
Noryoshi Nanba
Shigeru Asami
Akihiko Kuroiwa
Shiro Nakagawa
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
Application filed by TDK Corp filed Critical TDK Corp
Priority to JP57182589A priority Critical patent/JPS5971895A/ja
Publication of JPS5971895A publication Critical patent/JPS5971895A/ja
Publication of JPH0440194B2 publication Critical patent/JPH0440194B2/ja
Priority to US07/990,977 priority patent/US5670295A/en
Priority to US07/990,979 priority patent/US5741623A/en
Priority to US08/482,165 priority patent/US5512416A/en
Granted 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
    • G11B7/247—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
    • G11B7/249—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
    • 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
    • G11B7/245—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 a polymeric component

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
JP57182589A 1982-07-30 1982-10-18 光記録媒体 Granted JPS5971895A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP57182589A JPS5971895A (ja) 1982-10-18 1982-10-18 光記録媒体
US07/990,977 US5670295A (en) 1982-07-30 1992-12-09 Optical recording medium
US07/990,979 US5741623A (en) 1982-07-30 1992-12-09 Optical recording medium
US08/482,165 US5512416A (en) 1982-07-30 1995-06-06 Optical recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57182589A JPS5971895A (ja) 1982-10-18 1982-10-18 光記録媒体

Publications (2)

Publication Number Publication Date
JPS5971895A JPS5971895A (ja) 1984-04-23
JPH0440194B2 true JPH0440194B2 (fr) 1992-07-02

Family

ID=16120929

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57182589A Granted JPS5971895A (ja) 1982-07-30 1982-10-18 光記録媒体

Country Status (1)

Country Link
JP (1) JPS5971895A (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59150795A (ja) * 1983-02-17 1984-08-29 Ricoh Co Ltd 光学的情報記録媒体
JPH0630963B2 (ja) * 1984-02-28 1994-04-27 株式会社リコー 光情報記録媒体
JPS60230891A (ja) * 1984-05-01 1985-11-16 Ricoh Co Ltd 光学的情報記録媒体
JPH066394B2 (ja) * 1984-05-30 1994-01-26 株式会社リコー 光情報記録媒体
JPS60257290A (ja) * 1984-06-04 1985-12-19 Ricoh Co Ltd 光情報記録媒体
JPH0643147B2 (ja) * 1984-08-13 1994-06-08 株式会社リコー 光情報記録媒体
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
JPH0640161A (ja) * 1992-01-22 1994-02-15 Nippon Columbia Co Ltd 光記録媒体

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5489605A (en) * 1977-09-29 1979-07-16 Philips Nv Information memory element
JPS58194595A (ja) * 1982-05-10 1983-11-12 Canon Inc 光学記録媒体

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5489605A (en) * 1977-09-29 1979-07-16 Philips Nv Information memory element
JPS58194595A (ja) * 1982-05-10 1983-11-12 Canon Inc 光学記録媒体

Also Published As

Publication number Publication date
JPS5971895A (ja) 1984-04-23

Similar Documents

Publication Publication Date Title
JPH0461792B2 (fr)
JPH0138680B2 (fr)
JPH0630961B2 (ja) 光記録媒体
JPH0558909B2 (fr)
JPS5981194A (ja) 光記録媒体
JPH0121798B2 (fr)
JPH0441066B2 (fr)
JPH0441067B2 (fr)
JPH0472712B2 (fr)
JPH0532231B2 (fr)
JPS6019587A (ja) 光記録媒体
JPH0440194B2 (fr)
JPS59190895A (ja) 光記録媒体
JPH0441063B2 (fr)
JPH0342193B2 (fr)
JPH0441061B2 (fr)
JPH0526670B2 (fr)
JPH0441671B2 (fr)
JPH0740377B2 (ja) 光記録媒体
JPH0630962B2 (ja) 光記録媒体
JPH0521753B2 (fr)
JPH0469078B2 (fr)
JPH0441068B2 (fr)
JPS6092893A (ja) 光記録媒体
JPH0441070B2 (fr)