JPH0477973B2 - - Google Patents

Info

Publication number
JPH0477973B2
JPH0477973B2 JP60191984A JP19198485A JPH0477973B2 JP H0477973 B2 JPH0477973 B2 JP H0477973B2 JP 60191984 A JP60191984 A JP 60191984A JP 19198485 A JP19198485 A JP 19198485A JP H0477973 B2 JPH0477973 B2 JP H0477973B2
Authority
JP
Japan
Prior art keywords
substrate
hub
optical recording
recording medium
present
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
JP60191984A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6252740A (ja
Inventor
Katsuhiko Takano
Katsuhide Tamura
Eizo Sasamori
Yoshiaki Suzuki
Hiroshi Komata
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 JPS6252740A (ja) 1987-03-07
JPH0477973B2 true JPH0477973B2 (en]) 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 (en])

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2574860B2 (ja) * 1988-03-29 1997-01-22 日立マクセル株式会社 光情報記録デイスクおよびデイスク駆動装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8300479A (nl) * 1983-02-09 1984-09-03 Philips Nv Optisch uitleesbare plaat.

Also Published As

Publication number Publication date
JPS6252740A (ja) 1987-03-07

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