Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841535 | Semiconductor laser device | Yutaka Nagai, Kenji Ikeda | 1989-06-20 |
| 4833510 | Semiconductor laser array with independently usable laser light emission regions formed in a single active layer | Yutaka Nagai, Kenji Ikeda | 1989-05-23 |
| 4829023 | Method of producing a semiconductor laser | Yutaka Nagai, Tetsuya Yagi, Yoichiro Ota | 1989-05-09 |