JPS64820U - - Google Patents
Info
- Publication number
- JPS64820U JPS64820U JP1987092020U JP9202087U JPS64820U JP S64820 U JPS64820 U JP S64820U JP 1987092020 U JP1987092020 U JP 1987092020U JP 9202087 U JP9202087 U JP 9202087U JP S64820 U JPS64820 U JP S64820U
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- optical disk
- protective cover
- covers
- spacers
- 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
Links
- 230000001681 protective effect Effects 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims 4
- 239000011521 glass Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 229920003002 synthetic resin Polymers 0.000 claims 1
- 239000000057 synthetic resin Substances 0.000 claims 1
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987092020U JPS64820U (de) | 1987-06-17 | 1987-06-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987092020U JPS64820U (de) | 1987-06-17 | 1987-06-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS64820U true JPS64820U (de) | 1989-01-05 |
Family
ID=30953338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987092020U Pending JPS64820U (de) | 1987-06-17 | 1987-06-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS64820U (de) |
-
1987
- 1987-06-17 JP JP1987092020U patent/JPS64820U/ja active Pending