Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881120 | Conductive modulated MOSFET | Akio Nakagawa, Hiromichi Ohashi, Yoshihiro Yamaguchi, Thuneo Thukakoshi | 1989-11-14 |
| 4878957 | Dielectrically isolated semiconductor substrate | Yoshihiro Yamaguchi, Akio Nakagawa, Kazuyoshi Furukama, Kiyoshi Fukuda, Katsujiro Tanzawa | 1989-11-07 |