JPS50136051A - - Google Patents
Info
- Publication number
- JPS50136051A JPS50136051A JP49042401A JP4240174A JPS50136051A JP S50136051 A JPS50136051 A JP S50136051A JP 49042401 A JP49042401 A JP 49042401A JP 4240174 A JP4240174 A JP 4240174A JP S50136051 A JPS50136051 A JP S50136051A
- Authority
- JP
- Japan
- 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
- Automatic Focus Adjustment (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP49042401A JPS50136051A (de) | 1974-04-15 | 1974-04-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP49042401A JPS50136051A (de) | 1974-04-15 | 1974-04-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS50136051A true JPS50136051A (de) | 1975-10-28 |
Family
ID=12635034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP49042401A Pending JPS50136051A (de) | 1974-04-15 | 1974-04-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS50136051A (de) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53119005A (en) * | 1977-03-24 | 1978-10-18 | Siwecki Thomas | Method and device for storing and referring to information |
| JPS54107707A (en) * | 1978-02-13 | 1979-08-23 | Toshiba Corp | Optical information recorder |
| JPS5589922A (en) * | 1978-12-27 | 1980-07-08 | Hitachi Ltd | Information recorder |
| JPS56163533A (en) * | 1980-05-19 | 1981-12-16 | Matsushita Electric Ind Co Ltd | Optical recorder and reproducer |
| JPS5738336U (de) * | 1981-04-23 | 1982-03-01 | ||
| JPS616613A (ja) * | 1984-06-20 | 1986-01-13 | Hitachi Ltd | 自動焦点機構 |
| JPH01214810A (ja) * | 1988-02-23 | 1989-08-29 | Nec Corp | 合焦点検出装置 |
| US5740138A (en) * | 1994-09-06 | 1998-04-14 | Kabushiki Kaisha Toshiba | Apparatus for recording information on a primary optical disk to manufacture optical disks |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1284809A (en) * | 1970-06-11 | 1972-08-09 | Mitsubishi Electric Corp | A laser processing apparatus |
| JPS4885025A (de) * | 1972-02-15 | 1973-11-12 | ||
| JPS48101927A (de) * | 1972-04-05 | 1973-12-21 |
-
1974
- 1974-04-15 JP JP49042401A patent/JPS50136051A/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1284809A (en) * | 1970-06-11 | 1972-08-09 | Mitsubishi Electric Corp | A laser processing apparatus |
| JPS4885025A (de) * | 1972-02-15 | 1973-11-12 | ||
| JPS48101927A (de) * | 1972-04-05 | 1973-12-21 |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53119005A (en) * | 1977-03-24 | 1978-10-18 | Siwecki Thomas | Method and device for storing and referring to information |
| JPS6244333B2 (de) * | 1977-03-24 | 1987-09-19 | Siwecki Thomas | |
| JPS54107707A (en) * | 1978-02-13 | 1979-08-23 | Toshiba Corp | Optical information recorder |
| JPS5951050B2 (ja) * | 1978-02-13 | 1984-12-12 | 株式会社東芝 | 光情報記録装置 |
| JPS5589922A (en) * | 1978-12-27 | 1980-07-08 | Hitachi Ltd | Information recorder |
| JPS606015B2 (ja) * | 1978-12-27 | 1985-02-15 | 株式会社日立製作所 | 情報記録装置 |
| JPS56163533A (en) * | 1980-05-19 | 1981-12-16 | Matsushita Electric Ind Co Ltd | Optical recorder and reproducer |
| JPS6232532B2 (de) * | 1980-05-19 | 1987-07-15 | Matsushita Electric Ind Co Ltd | |
| JPS5738336U (de) * | 1981-04-23 | 1982-03-01 | ||
| JPS616613A (ja) * | 1984-06-20 | 1986-01-13 | Hitachi Ltd | 自動焦点機構 |
| JPH01214810A (ja) * | 1988-02-23 | 1989-08-29 | Nec Corp | 合焦点検出装置 |
| US5740138A (en) * | 1994-09-06 | 1998-04-14 | Kabushiki Kaisha Toshiba | Apparatus for recording information on a primary optical disk to manufacture optical disks |