Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6664591 | Insulated gate semiconductor device | Akio Nakagawa | 2003-12-16 |
| 6620653 | Semiconductor device and method of manufacturing the same | Hidetaka Hattori, Akio Nakagawa | 2003-09-16 |
| 6617641 | High voltage semiconductor device capable of increasing a switching speed | Akio Nakagawa | 2003-09-09 |
| 6563193 | Semiconductor device | Yusuke Kawaguchi, Kazutoshi Nakamura, Hirofumi Nagano, Akio Nakagawa | 2003-05-13 |