JPS6252740A - 光学的記録媒体 - Google Patents

光学的記録媒体

Info

Publication number
JPS6252740A
JPS6252740A JP60191984A JP19198485A JPS6252740A JP S6252740 A JPS6252740 A JP S6252740A JP 60191984 A JP60191984 A JP 60191984A JP 19198485 A JP19198485 A JP 19198485A JP S6252740 A JPS6252740 A JP S6252740A
Authority
JP
Japan
Prior art keywords
hub
substrate
recording medium
optical recording
recess
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
JP60191984A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0477973B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
Katsuhiko Takano
勝彦 高野
Katsuhide Tamura
田村　勝秀
Eizo Sasamori
笹森　栄造
Yoshiaki Suzuki
良明 鈴木
Hiroshi Komata
小俣　宏志
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP60191984A priority Critical patent/JPS6252740A/ja
Publication of JPS6252740A publication Critical patent/JPS6252740A/ja
Publication of JPH0477973B2 publication Critical patent/JPH0477973B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
JP60191984A 1985-09-02 1985-09-02 光学的記録媒体 Granted JPS6252740A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60191984A JPS6252740A (ja) 1985-09-02 1985-09-02 光学的記録媒体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60191984A JPS6252740A (ja) 1985-09-02 1985-09-02 光学的記録媒体

Publications (2)

Publication Number Publication Date
JPS6252740A true JPS6252740A (ja) 1987-03-07
JPH0477973B2 JPH0477973B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1992-12-09

Family

ID=16283694

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60191984A Granted JPS6252740A (ja) 1985-09-02 1985-09-02 光学的記録媒体

Country Status (1)

Country Link
JP (1) JPS6252740A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01248373A (ja) * 1988-03-29 1989-10-03 Hitachi Maxell Ltd 光情報記録デイスクおよびデイスク駆動装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59138030U (ja) * 1983-02-09 1984-09-14 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン 光学的読取り可能のデイスク

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59138030U (ja) * 1983-02-09 1984-09-14 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン 光学的読取り可能のデイスク

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01248373A (ja) * 1988-03-29 1989-10-03 Hitachi Maxell Ltd 光情報記録デイスクおよびデイスク駆動装置

Also Published As

Publication number Publication date
JPH0477973B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1992-12-09

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