Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866490 | Field effect device maintaining a high speed operation in a high voltage operation | — | 1989-09-12 |
| 4837605 | Indium-phosphide hetero-MIS-gate field effect transistor | Kensuke Kasahara, Keiichi Ohata | 1989-06-06 |
| 4829346 | Field-effect transistor and the same associated with an optical semiconductor device | Kensuke Kasahara, Tomoji Terakado, Yasumasa Inomoto, Akira Suzuki | 1989-05-09 |