JPH031968U - - Google Patents
Info
- Publication number
- JPH031968U JPH031968U JP6208989U JP6208989U JPH031968U JP H031968 U JPH031968 U JP H031968U JP 6208989 U JP6208989 U JP 6208989U JP 6208989 U JP6208989 U JP 6208989U JP H031968 U JPH031968 U JP H031968U
- Authority
- JP
- Japan
- Prior art keywords
- electroforming
- glass master
- ring
- master disk
- electrode ring
- 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
- 238000005323 electroforming Methods 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Manufacturing Optical Record Carriers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6208989U JPH031968U (en, 2012) | 1989-05-29 | 1989-05-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6208989U JPH031968U (en, 2012) | 1989-05-29 | 1989-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH031968U true JPH031968U (en, 2012) | 1991-01-10 |
Family
ID=31590921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6208989U Pending JPH031968U (en, 2012) | 1989-05-29 | 1989-05-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH031968U (en, 2012) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62280393A (ja) * | 1986-05-28 | 1987-12-05 | Nec Corp | 電鋳用電極リング |
| JPS6364649A (ja) * | 1986-09-04 | 1988-03-23 | Seiko Epson Corp | スタンパの製造方法 |
-
1989
- 1989-05-29 JP JP6208989U patent/JPH031968U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62280393A (ja) * | 1986-05-28 | 1987-12-05 | Nec Corp | 電鋳用電極リング |
| JPS6364649A (ja) * | 1986-09-04 | 1988-03-23 | Seiko Epson Corp | スタンパの製造方法 |