Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6670650 | Power semiconductor rectifier with ring-shaped trenches | Michio Nemoto, Tatsuya Naito, Mitsuaki Kirisawa | 2003-12-30 |
| 6621120 | Semiconductor device | Seiji Momota, Mitsuaki Kirisawa, Takashi Yoshimura | 2003-09-16 |
| 6559023 | Method of fabricating a semiconductor device with phosphorous and boron ion implantation, and by annealing to control impurity concentration thereof | Seiji Momota, Mitsuaki Kirisawa, Takashi Yoshimura | 2003-05-06 |