JPS6419569A - Optical information recording disk - Google Patents
Optical information recording diskInfo
- Publication number
- JPS6419569A JPS6419569A JP62172898A JP17289887A JPS6419569A JP S6419569 A JPS6419569 A JP S6419569A JP 62172898 A JP62172898 A JP 62172898A JP 17289887 A JP17289887 A JP 17289887A JP S6419569 A JPS6419569 A JP S6419569A
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- center
- hole
- positioning part
- hub
- 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
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62172898A JPS6419569A (en) | 1987-07-13 | 1987-07-13 | Optical information recording disk |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62172898A JPS6419569A (en) | 1987-07-13 | 1987-07-13 | Optical information recording disk |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6419569A true JPS6419569A (en) | 1989-01-23 |
Family
ID=15950383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62172898A Pending JPS6419569A (en) | 1987-07-13 | 1987-07-13 | Optical information recording disk |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6419569A (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01256084A (ja) * | 1988-04-04 | 1989-10-12 | Fuji Photo Film Co Ltd | 情報記録媒体 |
-
1987
- 1987-07-13 JP JP62172898A patent/JPS6419569A/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01256084A (ja) * | 1988-04-04 | 1989-10-12 | Fuji Photo Film Co Ltd | 情報記録媒体 |
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