JPH0753131Y2 - 光デイスク - Google Patents

光デイスク

Info

Publication number
JPH0753131Y2
JPH0753131Y2 JP1987066049U JP6604987U JPH0753131Y2 JP H0753131 Y2 JPH0753131 Y2 JP H0753131Y2 JP 1987066049 U JP1987066049 U JP 1987066049U JP 6604987 U JP6604987 U JP 6604987U JP H0753131 Y2 JPH0753131 Y2 JP H0753131Y2
Authority
JP
Japan
Prior art keywords
hole
depth
data information
present
optical disc
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
JP1987066049U
Other languages
English (en)
Japanese (ja)
Other versions
JPS63173724U (en:Method
Inventor
延勝 深谷
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to JP1987066049U priority Critical patent/JPH0753131Y2/ja
Publication of JPS63173724U publication Critical patent/JPS63173724U/ja
Application granted granted Critical
Publication of JPH0753131Y2 publication Critical patent/JPH0753131Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Optical Recording Or Reproduction (AREA)
JP1987066049U 1987-04-30 1987-04-30 光デイスク Expired - Lifetime JPH0753131Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987066049U JPH0753131Y2 (ja) 1987-04-30 1987-04-30 光デイスク

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987066049U JPH0753131Y2 (ja) 1987-04-30 1987-04-30 光デイスク

Publications (2)

Publication Number Publication Date
JPS63173724U JPS63173724U (en:Method) 1988-11-11
JPH0753131Y2 true JPH0753131Y2 (ja) 1995-12-06

Family

ID=30903688

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987066049U Expired - Lifetime JPH0753131Y2 (ja) 1987-04-30 1987-04-30 光デイスク

Country Status (1)

Country Link
JP (1) JPH0753131Y2 (en:Method)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6164491A (ja) * 1984-09-06 1986-04-02 Nec Corp 光記録方式および光記録媒体
JPS60242532A (ja) * 1985-01-25 1985-12-02 Hitachi Ltd 情報記録担体

Also Published As

Publication number Publication date
JPS63173724U (en:Method) 1988-11-11

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