Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5001536 | Semiconductor device | Tadashi Fukuzawa, Michiharu Nakamura | 1991-03-19 |
| 4933728 | Semiconductor optical device | Tadashi Fukuzawa, Kenji Hiruma, Hiroyoshi Matsumura | 1990-06-12 |
| 4847573 | Optical modulator | Tadashi Fukuzawa, Kenji Hiruma, Hiroyoshi Matsumura | 1989-07-11 |