Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6403988 | Semiconductor device with reverse conducting faculty | Takeshi Sakuma, Yuichiro Imanishi, Naohiro Shimizu | 2002-06-11 |
| 6359424 | Switching circuit for generating pulsed power | Tatsuhiko Hatano, Takeshi Sakuma, Wataru Shionoya | 2002-03-19 |