JPS63149419U - - Google Patents
Info
- Publication number
- JPS63149419U JPS63149419U JP1987040410U JP4041087U JPS63149419U JP S63149419 U JPS63149419 U JP S63149419U JP 1987040410 U JP1987040410 U JP 1987040410U JP 4041087 U JP4041087 U JP 4041087U JP S63149419 U JPS63149419 U JP S63149419U
- Authority
- JP
- Japan
- Prior art keywords
- information recording
- optical information
- spacers
- disk
- recording disk
- 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
- 230000003287 optical effect Effects 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 2
- 238000009423 ventilation Methods 0.000 claims description 2
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987040410U JPS63149419U (fr) | 1987-03-19 | 1987-03-19 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987040410U JPS63149419U (fr) | 1987-03-19 | 1987-03-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63149419U true JPS63149419U (fr) | 1988-10-03 |
Family
ID=30854478
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987040410U Pending JPS63149419U (fr) | 1987-03-19 | 1987-03-19 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63149419U (fr) |
-
1987
- 1987-03-19 JP JP1987040410U patent/JPS63149419U/ja active Pending