Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6580340 | Ladder-type piezoelectric filter using resonators with nodal cuts and made from materials with equal frequency constants | Takashi Shimura | 2003-06-17 |
| 6366182 | Ladder-type piezoelectric filter having a substantially square resonator with the four corners cut | Takashi Shimura | 2002-04-02 |
| 5274529 | Electronic device with molded case | Koichi Nagano, Toshikazu Ishiguro | 1993-12-28 |
| 5272595 | Terminal structure for an electronic device | Koichi Nagano, Toshikazu Ishiguro | 1993-12-21 |