Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5712876 | Radio station apparatus and signal transmission method thereof | Yasunori Yoshizawa | 1998-01-27 |
| 5553318 | Transmitter having envelope feedback loop and automatic level control loop | Osamu Yamamoto | 1996-09-03 |
| 5457436 | Balanced phase modulator used in microwave band | Masakazu Nishida, Osamu Yamamoto | 1995-10-10 |
| 5451917 | High-frequency choke circuit | Osamu Yamamoto, Masakazu Nishida | 1995-09-19 |
| 5410747 | Dual conversion transmitter | Osamu Yamamoto | 1995-04-25 |
| 4930141 | Multi-phase PSK modulation apparatus | — | 1990-05-29 |
| 4755773 | Phase modulator apparatus for generating a burst phase-modulated wave | — | 1988-07-05 |