Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6458287 | Piezoelectric ceramic composition and piezoelectric element containing the same | Masamitsu Nishida, Keiichi Takahashi, Hiroshi Sogou, Junichi Kato | 2002-10-01 |
| 6433458 | Method and unit for driving piezoelectric transformer used for controlling luminance of cold-cathode tube | Hiroshi Nakatsuka, Katsunori Moritoki, Toshiyuki Asahi, Osamu Kawasaki | 2002-08-13 |