Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4847215 | Method for forming silicon carbide semiconductor film | Kenichi Hanaki, Hitomi Kitagawa, Tadashi Hattori | 1989-07-11 |
| 4819037 | Semiconductor device | Nobuyoshi Sakakibara, Mitutaka Katada, Minoru Ohta, Tadashi Hattori | 1989-04-04 |