Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10355082 | Semiconductor device including active and dummy cell regions | Tomohito KUDO, Yoshihumi Tomomatsu, Yasuo ATA | 2019-07-16 |
| 9972618 | Semiconductor device | Yoshifumi Tomomatsu | 2018-05-15 |
| 8390097 | Insulated gate bipolar transistor having contact region with variable width | Takuya Hamaguchi, Tetsujiro Tsunoda | 2013-03-05 |
| 7777249 | Semiconductor device with enhanced switching speed and method for manufacturing the same | Takuya Hamaguchi, Tetsujiro Tsunoda | 2010-08-17 |
| 6696702 | Silicon carbide semiconductor switching device | Katsumi Satoh, Youichi Ishimura | 2004-02-24 |
| 6683348 | Insulated gate bipolar semiconductor device transistor with a ladder shaped emitter | Yoshifumi Tomomatsu | 2004-01-27 |