Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6268681 | Method and circuit for driving piezoelectric transformer | Shuuji Yamaguchi | 2001-07-31 |
| 6208064 | Piezoelectric transformer drive circuit and drive method | Katuyuki Fujikura | 2001-03-27 |
| 6151232 | Power supply circuit utilizing a piezoelectric transformer that supplies power to a load whose impedance varies depending on temperature | Shuuji Yamaguchi | 2000-11-21 |
| 6078124 | Piezoelectric transformer driving circuit and driving method | Shuuji Yamaguchi | 2000-06-20 |
| 6008564 | Driver circuit for piezoelectric transformer | Hirokazu Takayoshi, Shingo Kawashima | 1999-12-28 |
| 5942835 | Piezoelectric transformer drive circuit | Hirokazu Takayoshi | 1999-08-24 |
| 5894184 | Drive circuit for driving a piezoelectric transformer capable of decreasing heat developed from electronic parts composing an inverter circuit | Hirokazu Takayoshi | 1999-04-13 |