Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5204981 | Interference elimination system | Yoshio Karasawa, Hisato Iwai | 1993-04-20 |
| 5173711 | Microstrip antenna for two-frequency separate-feeding type for circularly polarized waves | Kazunori Takeuchi, Takayasu Shiokawa | 1992-12-22 |
| 5170176 | Quadrifilar helix antenna | Takayasu Shiokawa | 1992-12-08 |
| 4893350 | Interference cancellation system | Kenichi Minamisono, Fumio Watanbe, Noboru Baba | 1990-01-09 |