Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6433458 | Method and unit for driving piezoelectric transformer used for controlling luminance of cold-cathode tube | Hiroshi Nakatsuka, Toshiyuki Asahi, Kojiro Okuyama, Osamu Kawasaki | 2002-08-13 |