Issued Patents All Time
Showing 51–63 of 63 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4623857 | Dielectric resonator device | Toshio Nishikawa, Hidekazu Wada, Koichi Takehara | 1986-11-18 |
| 4613838 | Dielectric resonator | Hidekazu Wada | 1986-09-23 |
| 4546334 | Electrical filter device | Toshio Nishikawa, Tadahiro Yorita | 1985-10-08 |
| 4423397 | Dielectric resonator and filter with dielectric resonator | Toshio Nishikawa, Sadahiro Tamura, Yoji Ito | 1983-12-27 |
| 4398164 | Coaxial resonator | Toshio Nishikawa, Sadahiro Tamura, Haruo Matsumoto | 1983-08-09 |
| 4342972 | Microwave device employing coaxial resonator | Toshio Nishikawa, Sadahiro Tamura, Haruo Matsumoto | 1982-08-03 |
| 4325035 | Oscillator using dielectric resonator | Toshio Nishikawa, Yoji Ito, Sadahiro Tamura | 1982-04-13 |
| 4321560 | Oscillator using dielectric resonator | Toshio Nishikawa, Yoji Ito, Sadahiro Tamura | 1982-03-23 |
| 4276525 | Coaxial resonator with projecting terminal portion and electrical filter employing a coaxial resonator of that type | Toshio Nishikawa, Sadahiro Tamura | 1981-06-30 |
| 4245198 | High frequency filter device | Toshio Nishikawa, Sadahiro Tamura, Haruo Matsumoto | 1981-01-13 |
| 4223287 | Electrical filter employing transverse electromagnetic mode coaxial resonators | Toshio Nishikawa, Sadahiro Tamura, Haruo Matsumoto | 1980-09-16 |
| 4200847 | Rectangular branching filter having plurality of rod members for fine impedance matching | Toshio Nishikawa, Yoji Ito, Sadahiro Tamura | 1980-04-29 |
| 4184130 | Filter devices incorporating dielectric resonators and leakage cable | Toshio Nishikawa, Sadahiro Tamura, Yoji Ito | 1980-01-15 |