Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6583534 | Piezoelectric transformer, piezoelectric transformer drive circuit, piezoelectric transformer drive method and cold cathode tube drive apparatus using piezoelectric transformer | Katsunori Moritoki, Toshiyuki Asahi, Kojiro Okuyama, Osamu Kawasaki | 2003-06-24 |
| 6566821 | Drive device and drive method for a cold cathode fluorescent lamp | Takeshi Yamaguchi, Katsu Takeda, Katsunori Moritoki | 2003-05-20 |
| 6509671 | Driving method and driving circuit for piezoelectric transformer, cold cathode tube emission device, liquid crystal panel and liquid crystal panel built-in apparatus | Katsu Takeda, Katsunori Moritoki, Takeshi Yamaguchi | 2003-01-21 |
| 6509700 | Apparatus and method for driving a cathode discharge tube | Takeshi Yamaguchi, Katsu Takeda, Katsunori Moritoki, Kojiro Okuyama | 2003-01-21 |