JPS63130920U - - Google Patents
Info
- Publication number
- JPS63130920U JPS63130920U JP1987021540U JP2154087U JPS63130920U JP S63130920 U JPS63130920 U JP S63130920U JP 1987021540 U JP1987021540 U JP 1987021540U JP 2154087 U JP2154087 U JP 2154087U JP S63130920 U JPS63130920 U JP S63130920U
- Authority
- JP
- Japan
- Prior art keywords
- disk
- substrate
- bonded together
- hole diameter
- optical disk
- 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
- 239000000758 substrate Substances 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 3
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987021540U JPS63130920U (ko) | 1987-02-16 | 1987-02-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987021540U JPS63130920U (ko) | 1987-02-16 | 1987-02-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63130920U true JPS63130920U (ko) | 1988-08-26 |
Family
ID=30818071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987021540U Pending JPS63130920U (ko) | 1987-02-16 | 1987-02-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63130920U (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100582955B1 (ko) * | 2001-05-14 | 2006-05-23 | 엘지전자 주식회사 | 비대칭 상하구조의 중앙홀을 갖는 고밀도 광디스크 및 그 제조방법 |
-
1987
- 1987-02-16 JP JP1987021540U patent/JPS63130920U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100582955B1 (ko) * | 2001-05-14 | 2006-05-23 | 엘지전자 주식회사 | 비대칭 상하구조의 중앙홀을 갖는 고밀도 광디스크 및 그 제조방법 |
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