Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7872540 | Oscillator device and transmitter module using same | Naoki Yuda, Eiji Okada, Akira Fujishima, Masatoshi Homan | 2011-01-18 |
| 6150903 | Piezoelectric filter, its manufacturing method, and intermediate frequency filter | Toshio Ishizaki, Osamu Kawasaki, Toru Yamada | 2000-11-21 |
| 5986522 | Piezoelectric filter of the ladder type | Toshio Ishizaki, Tomoki Uwano, Osamu Kawasaki, Yukihiko Ise, Toru Yamada +1 more | 1999-11-16 |
| 5973579 | Ladder type intermediate frequency filter | Toshio Ishizaki, Toru Yamada, Hiroaki Kosugi | 1999-10-26 |
| 5400001 | Piezoelectric resonator and piezoelectric filter | Toshio Ishizaki, Yukihiko Ise, Hiroshi Fukushima, Yukio Kashiwagi, Tomoki Uwano | 1995-03-21 |