Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855799 | Power MOS FET with carrier lifetime killer | Hirohito Tanabe, Yu Ohata, Yukiharu Miwa, Yoshihito Nakayama | 1989-08-08 |
| 4853745 | Exposure apparatus | Saburo Kamiya, Akikazu Tanimoto | 1989-08-01 |