Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10680443 | Solar power generation system | — | 2020-06-09 |
| 7535155 | Piezoelectric device and piezoelectric switch provided with the same | — | 2009-05-19 |
| 6882090 | Piezoelectric transformer and strobe apparatus having the piezoelectric transformer | Takeshi Fujimura, Masaaki Toyama | 2005-04-19 |
| 6873086 | Piezoelectric transformer and strobe apparatus having the piezoelectric transformer | Takeshi Fujimura, Masaaki Toyama | 2005-03-29 |
| 6564015 | Electronic flash device | Takeshi Fujimura, Toshiyuki Terada, Tatsuya Goto | 2003-05-13 |
| 6486612 | Control circuit and method for protecting a piezoelectric transformer from an open state and a short-circuited state | Takeshi Fujimura, Masaaki Toyama | 2002-11-26 |
| 6342752 | Piezoelectric transformer element and method of mounting it in a housing | Masako Kataoka, Takeshi Fujimura, Takahiro Yamakawa, Keizo Tsukamoto | 2002-01-29 |
| 6262518 | Housing for piezoelectric transformer device | Takeshi Fujimura, Masaaki Toyama, Katsumi Uesawa | 2001-07-17 |
| 6239558 | System for driving a cold-cathode fluorescent lamp connected to a piezoelectric transformer | Takeshi Fujimura, Masaaki Toyama | 2001-05-29 |
| 6198198 | Control circuit and method for piezoelectric transformer | Takeshi Fujimura, Masaaki Toyama | 2001-03-06 |
| 6172447 | Piezoelectric transformer device | Takeshi Fujimura, Masaaki Toyama, Masako Kataoka, Toru Ezaki, Takahiro Yamakawa +1 more | 2001-01-09 |