JPS63231744A - 光デイスク - Google Patents

光デイスク

Info

Publication number
JPS63231744A
JPS63231744A JP62066846A JP6684687A JPS63231744A JP S63231744 A JPS63231744 A JP S63231744A JP 62066846 A JP62066846 A JP 62066846A JP 6684687 A JP6684687 A JP 6684687A JP S63231744 A JPS63231744 A JP S63231744A
Authority
JP
Japan
Prior art keywords
optical disk
circumferential spacer
polycarbonate
disk
substrates
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
JP62066846A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0444332B2 (enrdf_load_html_response
Inventor
Tsutomu Fujita
勉 藤田
Toshitsugu Kikuchi
菊地 利注
Junichi Kimura
木村 惇一
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical 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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP62066846A priority Critical patent/JPS63231744A/ja
Publication of JPS63231744A publication Critical patent/JPS63231744A/ja
Publication of JPH0444332B2 publication Critical patent/JPH0444332B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
JP62066846A 1987-03-19 1987-03-19 光デイスク Granted JPS63231744A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62066846A JPS63231744A (ja) 1987-03-19 1987-03-19 光デイスク

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62066846A JPS63231744A (ja) 1987-03-19 1987-03-19 光デイスク

Publications (2)

Publication Number Publication Date
JPS63231744A true JPS63231744A (ja) 1988-09-27
JPH0444332B2 JPH0444332B2 (enrdf_load_html_response) 1992-07-21

Family

ID=13327616

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62066846A Granted JPS63231744A (ja) 1987-03-19 1987-03-19 光デイスク

Country Status (1)

Country Link
JP (1) JPS63231744A (enrdf_load_html_response)

Also Published As

Publication number Publication date
JPH0444332B2 (enrdf_load_html_response) 1992-07-21

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