JPH0734496Y2 - 光情報記録媒体 - Google Patents

光情報記録媒体

Info

Publication number
JPH0734496Y2
JPH0734496Y2 JP1988045124U JP4512488U JPH0734496Y2 JP H0734496 Y2 JPH0734496 Y2 JP H0734496Y2 JP 1988045124 U JP1988045124 U JP 1988045124U JP 4512488 U JP4512488 U JP 4512488U JP H0734496 Y2 JPH0734496 Y2 JP H0734496Y2
Authority
JP
Japan
Prior art keywords
spacer
layer
recording
recording layer
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
JP1988045124U
Other languages
English (en)
Japanese (ja)
Other versions
JPH01151427U (US20030199744A1-20031023-C00003.png
Inventor
秀章 大庭
辰也 栄田
一広 小鷹
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP1988045124U priority Critical patent/JPH0734496Y2/ja
Publication of JPH01151427U publication Critical patent/JPH01151427U/ja
Application granted granted Critical
Publication of JPH0734496Y2 publication Critical patent/JPH0734496Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
JP1988045124U 1988-04-01 1988-04-01 光情報記録媒体 Expired - Lifetime JPH0734496Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988045124U JPH0734496Y2 (ja) 1988-04-01 1988-04-01 光情報記録媒体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988045124U JPH0734496Y2 (ja) 1988-04-01 1988-04-01 光情報記録媒体

Publications (2)

Publication Number Publication Date
JPH01151427U JPH01151427U (US20030199744A1-20031023-C00003.png) 1989-10-19
JPH0734496Y2 true JPH0734496Y2 (ja) 1995-08-02

Family

ID=31271446

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988045124U Expired - Lifetime JPH0734496Y2 (ja) 1988-04-01 1988-04-01 光情報記録媒体

Country Status (1)

Country Link
JP (1) JPH0734496Y2 (US20030199744A1-20031023-C00003.png)

Also Published As

Publication number Publication date
JPH01151427U (US20030199744A1-20031023-C00003.png) 1989-10-19

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