Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4837605 | Indium-phosphide hetero-MIS-gate field effect transistor | Tomohiro Itoh, Keiichi Ohata | 1989-06-06 |
| 4829346 | Field-effect transistor and the same associated with an optical semiconductor device | Tomoji Terakado, Yasumasa Inomoto, Akira Suzuki, Tomohiro Itoh | 1989-05-09 |