Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4825230 | Optical writer with vacuum tube and electro-optic shutter | — | 1989-04-25 |
| 4803565 | Optical write head | Toru Teshigawara, Kazuo Terao, Hiroshi Watanabe | 1989-02-07 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4825230 | Optical writer with vacuum tube and electro-optic shutter | — | 1989-04-25 |
| 4803565 | Optical write head | Toru Teshigawara, Kazuo Terao, Hiroshi Watanabe | 1989-02-07 |