JPH01121131U - - Google Patents
Info
- Publication number
- JPH01121131U JPH01121131U JP1634788U JP1634788U JPH01121131U JP H01121131 U JPH01121131 U JP H01121131U JP 1634788 U JP1634788 U JP 1634788U JP 1634788 U JP1634788 U JP 1634788U JP H01121131 U JPH01121131 U JP H01121131U
- Authority
- JP
- Japan
- Prior art keywords
- stamper
- pits
- concavo
- pit
- manufacturing
- 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
- 238000004519 manufacturing process Methods 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
Landscapes
- Manufacturing Optical Record Carriers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1634788U JPH01121131U (en]) | 1988-02-12 | 1988-02-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1634788U JPH01121131U (en]) | 1988-02-12 | 1988-02-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01121131U true JPH01121131U (en]) | 1989-08-16 |
Family
ID=31229200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1634788U Pending JPH01121131U (en]) | 1988-02-12 | 1988-02-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01121131U (en]) |
-
1988
- 1988-02-12 JP JP1634788U patent/JPH01121131U/ja active Pending