JPH01138218U - - Google Patents

Info

Publication number
JPH01138218U
JPH01138218U JP1988032348U JP3234888U JPH01138218U JP H01138218 U JPH01138218 U JP H01138218U JP 1988032348 U JP1988032348 U JP 1988032348U JP 3234888 U JP3234888 U JP 3234888U JP H01138218 U JPH01138218 U JP H01138218U
Authority
JP
Japan
Prior art keywords
optical memory
substrate
memory device
groove
memory element
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
JP1988032348U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0753132Y2 (ja
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 filed Critical
Priority to JP1988032348U priority Critical patent/JPH0753132Y2/ja
Publication of JPH01138218U publication Critical patent/JPH01138218U/ja
Application granted granted Critical
Publication of JPH0753132Y2 publication Critical patent/JPH0753132Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Manufacturing Optical Record Carriers (AREA)
JP1988032348U 1988-03-10 1988-03-10 光メモリ素子用基板 Expired - Lifetime JPH0753132Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988032348U JPH0753132Y2 (ja) 1988-03-10 1988-03-10 光メモリ素子用基板

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988032348U JPH0753132Y2 (ja) 1988-03-10 1988-03-10 光メモリ素子用基板

Publications (2)

Publication Number Publication Date
JPH01138218U true JPH01138218U (en]) 1989-09-21
JPH0753132Y2 JPH0753132Y2 (ja) 1995-12-06

Family

ID=31258787

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988032348U Expired - Lifetime JPH0753132Y2 (ja) 1988-03-10 1988-03-10 光メモリ素子用基板

Country Status (1)

Country Link
JP (1) JPH0753132Y2 (en])

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61162829A (ja) * 1985-01-11 1986-07-23 Victor Co Of Japan Ltd 情報記録媒体の基板
JPS62295235A (ja) * 1987-05-13 1987-12-22 Hitachi Ltd 光ディスク

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61162829A (ja) * 1985-01-11 1986-07-23 Victor Co Of Japan Ltd 情報記録媒体の基板
JPS62295235A (ja) * 1987-05-13 1987-12-22 Hitachi Ltd 光ディスク

Also Published As

Publication number Publication date
JPH0753132Y2 (ja) 1995-12-06

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