Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6353309 | Switching circuit having a switching semiconductor device and control method thereof | Mitsuaki Ootani, Yoshiyuki Wasada, Nobuyuki Yamazaki, Yasushi Inoue, Takeshi Nakayama +2 more | 2002-03-05 |
| 6348755 | Method and apparatus for driving piezoelectric transformer | Mamoru Sakamoto, Kenji Kamitani | 2002-02-19 |