JPH0159919U - - Google Patents

Info

Publication number
JPH0159919U
JPH0159919U JP1987152359U JP15235987U JPH0159919U JP H0159919 U JPH0159919 U JP H0159919U JP 1987152359 U JP1987152359 U JP 1987152359U JP 15235987 U JP15235987 U JP 15235987U JP H0159919 U JPH0159919 U JP H0159919U
Authority
JP
Japan
Prior art keywords
disk body
substrate
recording medium
guide groove
medium layer
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.)
Pending
Application number
JP1987152359U
Other languages
English (en)
Japanese (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 JP1987152359U priority Critical patent/JPH0159919U/ja
Publication of JPH0159919U publication Critical patent/JPH0159919U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
JP1987152359U 1987-10-05 1987-10-05 Pending JPH0159919U (US20020094455A1-20020718-C00002.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987152359U JPH0159919U (US20020094455A1-20020718-C00002.png) 1987-10-05 1987-10-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987152359U JPH0159919U (US20020094455A1-20020718-C00002.png) 1987-10-05 1987-10-05

Publications (1)

Publication Number Publication Date
JPH0159919U true JPH0159919U (US20020094455A1-20020718-C00002.png) 1989-04-14

Family

ID=31427214

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987152359U Pending JPH0159919U (US20020094455A1-20020718-C00002.png) 1987-10-05 1987-10-05

Country Status (1)

Country Link
JP (1) JPH0159919U (US20020094455A1-20020718-C00002.png)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56137555A (en) * 1980-03-27 1981-10-27 Sony Corp Optical disc cassette and disc driving method
JPS6190342A (ja) * 1984-10-08 1986-05-08 Ricoh Co Ltd 光学的情報記憶媒体

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56137555A (en) * 1980-03-27 1981-10-27 Sony Corp Optical disc cassette and disc driving method
JPS6190342A (ja) * 1984-10-08 1986-05-08 Ricoh Co Ltd 光学的情報記憶媒体

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