Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885753 | Semiconductor laser device of variable wavelength type | Kazuhisa Uomi, Shinji Tsuji, Shinji Sakano, Naoki Chinone | 1989-12-05 |
| 4873691 | Wavelength-tunable semiconductor laser | Kazuhisa Uomi, Shinji Tsuji, Shinji Sakano, Naoki Chinone | 1989-10-10 |