JPS62164620U - - Google Patents
Info
- Publication number
- JPS62164620U JPS62164620U JP5177786U JP5177786U JPS62164620U JP S62164620 U JPS62164620 U JP S62164620U JP 5177786 U JP5177786 U JP 5177786U JP 5177786 U JP5177786 U JP 5177786U JP S62164620 U JPS62164620 U JP S62164620U
- Authority
- JP
- Japan
- Prior art keywords
- disks
- center hole
- radial grooves
- glass master
- glass
- 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
- 239000011521 glass Substances 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000015654 memory Effects 0.000 claims 1
Landscapes
- Manufacturing Optical Record Carriers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5177786U JPS62164620U (enExample) | 1986-04-07 | 1986-04-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5177786U JPS62164620U (enExample) | 1986-04-07 | 1986-04-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62164620U true JPS62164620U (enExample) | 1987-10-19 |
Family
ID=30876352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5177786U Pending JPS62164620U (enExample) | 1986-04-07 | 1986-04-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62164620U (enExample) |
-
1986
- 1986-04-07 JP JP5177786U patent/JPS62164620U/ja active Pending