Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5604835 | Integrated optical waveguide device | Tohru Nakamura, Takeshi Kato, Mitsuo Takeda | 1997-02-18 |
| 5598015 | Hetero-junction bipolar transistor and semiconductor devices using the same | Hiroshi Masuda, Tohru Nakamura, Takahiro Onai, Katsuyoshi Washio | 1997-01-28 |