Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4829534 | Semiconductor laser device having a semiconductor region for creating a depletion layer in a laser active layer for controlling current flow therethrough | Seiichi Miyazawa, Hidetoshi Nojiri, Toshitami Hara, Akira Shimizu, Isao Hakamada | 1989-05-09 |
| 4799229 | Semiconductor laser array | Seiichi Miyazawa, Toshitami Hara, Hidetoshi Nojiri, Mitsutoshi Hasegawa, Sotomitsu Ikeda | 1989-01-17 |
| 4796067 | Semiconductor device having a superlattice structure | Akira Shimizu, Toshitami Hara, Hidetoshi Nojiri, Isao Hakamada, Seiichi Miyazawa | 1989-01-03 |