Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6236840 | Transmission output detecting circuit | Fujio Sasaki | 2001-05-22 |
| 6175746 | Multiband mobile unit communication apparatus | Keiichi Nakayama, Seiichi Yamaguchi, Fujio Sasaki, Hiroaki Kosugi | 2001-01-16 |
| 5532646 | High frequency power amplifier | — | 1996-07-02 |
| 5376895 | Control circuit and method for transmission output | — | 1994-12-27 |
| 5214393 | Transmission output control circuit | — | 1993-05-25 |
| 4506241 | Coaxial dielectric resonator having different impedance portions and method of manufacturing the same | Mitsuo Makimoto, Sadahiko Yamashita | 1985-03-19 |
| 4389624 | Dielectric-loaded coaxial resonator with a metal plate for wide frequency adjustments | Sadahiko Yamashita | 1983-06-21 |