JPS6130329B2 - - Google Patents

Info

Publication number
JPS6130329B2
JPS6130329B2 JP54135273A JP13527379A JPS6130329B2 JP S6130329 B2 JPS6130329 B2 JP S6130329B2 JP 54135273 A JP54135273 A JP 54135273A JP 13527379 A JP13527379 A JP 13527379A JP S6130329 B2 JPS6130329 B2 JP S6130329B2
Authority
JP
Japan
Prior art keywords
recording
substrate
layer
coating layer
tracking
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
JP54135273A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5661048A (en
Inventor
Manabu Yamamoto
Susumu Yonezawa
Shuzo Fukunishi
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.)
NTT Inc
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP13527379A priority Critical patent/JPS5661048A/ja
Publication of JPS5661048A publication Critical patent/JPS5661048A/ja
Publication of JPS6130329B2 publication Critical patent/JPS6130329B2/ja
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

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
JP13527379A 1979-10-22 1979-10-22 Optical memory medium Granted JPS5661048A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13527379A JPS5661048A (en) 1979-10-22 1979-10-22 Optical memory medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13527379A JPS5661048A (en) 1979-10-22 1979-10-22 Optical memory medium

Publications (2)

Publication Number Publication Date
JPS5661048A JPS5661048A (en) 1981-05-26
JPS6130329B2 true JPS6130329B2 (cg-RX-API-DMAC7.html) 1986-07-12

Family

ID=15147842

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13527379A Granted JPS5661048A (en) 1979-10-22 1979-10-22 Optical memory medium

Country Status (1)

Country Link
JP (1) JPS5661048A (cg-RX-API-DMAC7.html)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3042960A1 (de) * 1980-11-14 1982-07-08 Basf Ag, 6700 Ludwigshafen Verfahren zur depolymerisation von polytetramethylenglykolether
JPS57158047A (en) * 1981-03-24 1982-09-29 Toshiba Corp Optical information recording medium
US4578788A (en) * 1983-06-02 1986-03-25 International Business Machines Corporation High performance optical storage medium with separate mechanical servo tracks embedded within the medium
JPS6252739A (ja) * 1985-09-02 1987-03-07 Canon Inc 光記録媒体
JPS62204448A (ja) * 1986-03-04 1987-09-09 Matsushita Electric Ind Co Ltd 光デイスク
JPH07111788B2 (ja) * 1987-01-23 1995-11-29 株式会社日立製作所 光情報記録媒体
JPH0762919B2 (ja) * 1989-05-18 1995-07-05 三菱化学株式会社 再生専用型光ディスク

Also Published As

Publication number Publication date
JPS5661048A (en) 1981-05-26

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