JPH02117774U - - Google Patents
Info
- Publication number
- JPH02117774U JPH02117774U JP1989025972U JP2597289U JPH02117774U JP H02117774 U JPH02117774 U JP H02117774U JP 1989025972 U JP1989025972 U JP 1989025972U JP 2597289 U JP2597289 U JP 2597289U JP H02117774 U JPH02117774 U JP H02117774U
- Authority
- JP
- Japan
- Prior art keywords
- circular opening
- disk substrate
- flange
- hub
- notch
- 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
- 230000003287 optical effect Effects 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- 229920005992 thermoplastic resin Polymers 0.000 claims 2
- 239000010410 layer Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989025972U JPH02117774U (tr) | 1989-03-06 | 1989-03-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989025972U JPH02117774U (tr) | 1989-03-06 | 1989-03-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02117774U true JPH02117774U (tr) | 1990-09-20 |
Family
ID=31247171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989025972U Pending JPH02117774U (tr) | 1989-03-06 | 1989-03-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02117774U (tr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003085655A1 (fr) * | 2002-04-08 | 2003-10-16 | Matsushita Electric Industrial Co., Ltd. | Disque optique |
-
1989
- 1989-03-06 JP JP1989025972U patent/JPH02117774U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003085655A1 (fr) * | 2002-04-08 | 2003-10-16 | Matsushita Electric Industrial Co., Ltd. | Disque optique |