JPS6426845A - Optical recording medium - Google Patents

Optical recording medium

Info

Publication number
JPS6426845A
JPS6426845A JP62182138A JP18213887A JPS6426845A JP S6426845 A JPS6426845 A JP S6426845A JP 62182138 A JP62182138 A JP 62182138A JP 18213887 A JP18213887 A JP 18213887A JP S6426845 A JPS6426845 A JP S6426845A
Authority
JP
Japan
Prior art keywords
recording medium
optical recording
thin film
fulgide
photochromic compd
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.)
Granted
Application number
JP62182138A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0337171B2 (enrdf_load_stackoverflow
Inventor
Junichi Hibino
Eiji Ando
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP62182138A priority Critical patent/JPS6426845A/ja
Priority to US07/174,406 priority patent/US4845240A/en
Publication of JPS6426845A publication Critical patent/JPS6426845A/ja
Priority to US07/343,509 priority patent/US4937120A/en
Publication of JPH0337171B2 publication Critical patent/JPH0337171B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D493/00—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
    • C07D493/02—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains two hetero rings
    • C07D493/04—Ortho-condensed systems
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/72—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705
    • G03C1/73—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705 containing organic 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
JP62182138A 1987-05-06 1987-07-23 Optical recording medium Granted JPS6426845A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP62182138A JPS6426845A (en) 1987-07-23 1987-07-23 Optical recording medium
US07/174,406 US4845240A (en) 1987-05-06 1988-03-28 Optical recording medium and process for producing the same
US07/343,509 US4937120A (en) 1987-05-06 1989-04-27 Optical recording medium and process for producing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62182138A JPS6426845A (en) 1987-07-23 1987-07-23 Optical recording medium

Publications (2)

Publication Number Publication Date
JPS6426845A true JPS6426845A (en) 1989-01-30
JPH0337171B2 JPH0337171B2 (enrdf_load_stackoverflow) 1991-06-04

Family

ID=16113009

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62182138A Granted JPS6426845A (en) 1987-05-06 1987-07-23 Optical recording medium

Country Status (1)

Country Link
JP (1) JPS6426845A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0407005A1 (en) * 1989-06-10 1991-01-09 THORN EMI plc Verification device for a security system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0407005A1 (en) * 1989-06-10 1991-01-09 THORN EMI plc Verification device for a security system

Also Published As

Publication number Publication date
JPH0337171B2 (enrdf_load_stackoverflow) 1991-06-04

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term