JPS5414706A - Information recording disc - Google Patents

Information recording disc

Info

Publication number
JPS5414706A
JPS5414706A JP8064277A JP8064277A JPS5414706A JP S5414706 A JPS5414706 A JP S5414706A JP 8064277 A JP8064277 A JP 8064277A JP 8064277 A JP8064277 A JP 8064277A JP S5414706 A JPS5414706 A JP S5414706A
Authority
JP
Japan
Prior art keywords
information recording
recording disc
film deposited
accurately
complex
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.)
Pending
Application number
JP8064277A
Other languages
Japanese (ja)
Inventor
Seio Watanabe
Takahiro Kubo
Osamu Ito
Satoru Komurasaki
Kunihiko Nakagawa
Tatsuo Kamisaka
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP8064277A priority Critical patent/JPS5414706A/en
Publication of JPS5414706A publication Critical patent/JPS5414706A/en
Pending 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
    • G11B7/243—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 inorganic materials only, e.g. ablative layers
    • 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
    • G11B7/243—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 inorganic materials only, e.g. ablative layers
    • G11B2007/24302—Metals or metalloids
    • G11B2007/24306—Metals or metalloids transition metal elements of groups 3-10
    • 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
    • G11B7/243—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 inorganic materials only, e.g. ablative layers
    • G11B2007/24302—Metals or metalloids
    • G11B2007/2431—Metals or metalloids group 13 elements (B, Al, Ga, In)

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

PURPOSE:To make effective use of light energies and record information readily and accurately by forming metal films with a complex of the Al film deposited on a base disc and the Cr film deposited thereon.
JP8064277A 1977-07-05 1977-07-05 Information recording disc Pending JPS5414706A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8064277A JPS5414706A (en) 1977-07-05 1977-07-05 Information recording disc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8064277A JPS5414706A (en) 1977-07-05 1977-07-05 Information recording disc

Publications (1)

Publication Number Publication Date
JPS5414706A true JPS5414706A (en) 1979-02-03

Family

ID=13724009

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8064277A Pending JPS5414706A (en) 1977-07-05 1977-07-05 Information recording disc

Country Status (1)

Country Link
JP (1) JPS5414706A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6054225U (en) * 1983-09-21 1985-04-16 大日本印刷株式会社 Information recording card
JPS62217437A (en) * 1986-03-11 1987-09-24 Fujitsu Ltd Optical recording medium
JPS62222446A (en) * 1986-03-20 1987-09-30 Fujitsu Ltd Optical recording medium
US4709363A (en) * 1981-05-11 1987-11-24 U.S. Philips Corporation Optically readable information disc having a reflection layer formed from a metal alloy

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4709363A (en) * 1981-05-11 1987-11-24 U.S. Philips Corporation Optically readable information disc having a reflection layer formed from a metal alloy
JPS6054225U (en) * 1983-09-21 1985-04-16 大日本印刷株式会社 Information recording card
JPS62217437A (en) * 1986-03-11 1987-09-24 Fujitsu Ltd Optical recording medium
JPS62222446A (en) * 1986-03-20 1987-09-30 Fujitsu Ltd Optical recording medium

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