JPH01113830U - - Google Patents
Info
- Publication number
- JPH01113830U JPH01113830U JP1988007057U JP705788U JPH01113830U JP H01113830 U JPH01113830 U JP H01113830U JP 1988007057 U JP1988007057 U JP 1988007057U JP 705788 U JP705788 U JP 705788U JP H01113830 U JPH01113830 U JP H01113830U
- Authority
- JP
- Japan
- Prior art keywords
- pits
- circular substrate
- optical method
- recording film
- film laminated
- 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.)
- Granted
Links
- 239000000758 substrate Substances 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims 1
- 230000001681 protective effect Effects 0.000 description 1
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988007057U JPH0753134Y2 (ja) | 1988-01-25 | 1988-01-25 | 情報ディスク |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988007057U JPH0753134Y2 (ja) | 1988-01-25 | 1988-01-25 | 情報ディスク |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01113830U true JPH01113830U (fr) | 1989-07-31 |
| JPH0753134Y2 JPH0753134Y2 (ja) | 1995-12-06 |
Family
ID=31211750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988007057U Expired - Lifetime JPH0753134Y2 (ja) | 1988-01-25 | 1988-01-25 | 情報ディスク |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0753134Y2 (fr) |
-
1988
- 1988-01-25 JP JP1988007057U patent/JPH0753134Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0753134Y2 (ja) | 1995-12-06 |