JPH0433556Y2 - - Google Patents
Info
- Publication number
- JPH0433556Y2 JPH0433556Y2 JP1986190052U JP19005286U JPH0433556Y2 JP H0433556 Y2 JPH0433556 Y2 JP H0433556Y2 JP 1986190052 U JP1986190052 U JP 1986190052U JP 19005286 U JP19005286 U JP 19005286U JP H0433556 Y2 JPH0433556 Y2 JP H0433556Y2
- Authority
- JP
- Japan
- Prior art keywords
- ring member
- information recording
- fixed
- recording medium
- 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.)
- Expired
Links
- 239000000758 substrate Substances 0.000 claims description 24
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000000428 dust Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1986190052U JPH0433556Y2 (sv) | 1986-12-10 | 1986-12-10 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1986190052U JPH0433556Y2 (sv) | 1986-12-10 | 1986-12-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6396622U JPS6396622U (sv) | 1988-06-22 |
JPH0433556Y2 true JPH0433556Y2 (sv) | 1992-08-11 |
Family
ID=31142911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1986190052U Expired JPH0433556Y2 (sv) | 1986-12-10 | 1986-12-10 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0433556Y2 (sv) |
-
1986
- 1986-12-10 JP JP1986190052U patent/JPH0433556Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6396622U (sv) | 1988-06-22 |
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