JPS52153404A - Information recording medium - Google Patents

Information recording medium

Info

Publication number
JPS52153404A
JPS52153404A JP7070876A JP7070876A JPS52153404A JP S52153404 A JPS52153404 A JP S52153404A JP 7070876 A JP7070876 A JP 7070876A JP 7070876 A JP7070876 A JP 7070876A JP S52153404 A JPS52153404 A JP S52153404A
Authority
JP
Japan
Prior art keywords
recording medium
information recording
disk
inclining
pit
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
JP7070876A
Other languages
English (en)
Japanese (ja)
Other versions
JPS568417B2 (cs
Inventor
Takafumi Sugano
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP7070876A priority Critical patent/JPS52153404A/ja
Publication of JPS52153404A publication Critical patent/JPS52153404A/ja
Publication of JPS568417B2 publication Critical patent/JPS568417B2/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
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24085—Pits

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Optical Recording Or Reproduction (AREA)
JP7070876A 1976-06-15 1976-06-15 Information recording medium Granted JPS52153404A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7070876A JPS52153404A (en) 1976-06-15 1976-06-15 Information recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7070876A JPS52153404A (en) 1976-06-15 1976-06-15 Information recording medium

Publications (2)

Publication Number Publication Date
JPS52153404A true JPS52153404A (en) 1977-12-20
JPS568417B2 JPS568417B2 (cs) 1981-02-24

Family

ID=13439346

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7070876A Granted JPS52153404A (en) 1976-06-15 1976-06-15 Information recording medium

Country Status (1)

Country Link
JP (1) JPS52153404A (cs)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5429608A (en) * 1977-08-09 1979-03-05 Mitsubishi Electric Corp Information signal recording carrier
JPS5528250U (cs) * 1978-08-11 1980-02-23

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4838702A (cs) * 1971-09-18 1973-06-07

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4838702A (cs) * 1971-09-18 1973-06-07

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5429608A (en) * 1977-08-09 1979-03-05 Mitsubishi Electric Corp Information signal recording carrier
JPS5528250U (cs) * 1978-08-11 1980-02-23

Also Published As

Publication number Publication date
JPS568417B2 (cs) 1981-02-24

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