JPH0466060B2 - - Google Patents

Info

Publication number
JPH0466060B2
JPH0466060B2 JP60088578A JP8857885A JPH0466060B2 JP H0466060 B2 JPH0466060 B2 JP H0466060B2 JP 60088578 A JP60088578 A JP 60088578A JP 8857885 A JP8857885 A JP 8857885A JP H0466060 B2 JPH0466060 B2 JP H0466060B2
Authority
JP
Japan
Prior art keywords
recording
photodetector
recording surface
optical disc
label
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
JP60088578A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61248246A (ja
Inventor
Yoshe Kodera
Nobuhiro Tokujuku
Yukio Fukui
Jun Matsumoto
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP60088578A priority Critical patent/JPS61248246A/ja
Publication of JPS61248246A publication Critical patent/JPS61248246A/ja
Publication of JPH0466060B2 publication Critical patent/JPH0466060B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Optical Recording Or Reproduction (AREA)
JP60088578A 1985-04-26 1985-04-26 光学式デイスク Granted JPS61248246A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60088578A JPS61248246A (ja) 1985-04-26 1985-04-26 光学式デイスク

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60088578A JPS61248246A (ja) 1985-04-26 1985-04-26 光学式デイスク

Publications (2)

Publication Number Publication Date
JPS61248246A JPS61248246A (ja) 1986-11-05
JPH0466060B2 true JPH0466060B2 (en]) 1992-10-22

Family

ID=13946727

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60088578A Granted JPS61248246A (ja) 1985-04-26 1985-04-26 光学式デイスク

Country Status (1)

Country Link
JP (1) JPS61248246A (en])

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5726969A (en) * 1994-12-28 1998-03-10 Matsushita Electric Industrial Co., Ltd. Optical recording medium having dual information surfaces

Also Published As

Publication number Publication date
JPS61248246A (ja) 1986-11-05

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