Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7277063 | Variable directivity antenna and variable directivity antenna system using the antennas | Shingo Fujisawa, Toshio Fujita, Kiyotaka Tatekawa, Eiji Shibuya | 2007-10-02 |
| 7205955 | Antenna | Shingo Fujisawa | 2007-04-17 |
| 7084829 | Signal receiving system | Toshio Fujita, Kiyotaka Tatekawa, Shingo Fujisawa | 2006-08-01 |
| 7071891 | Antenna apparatus | Kiyotaka Tatekawa, Toshio Fujita | 2006-07-04 |
| 6965353 | Multiple frequency band antenna and signal receiving system using such antenna | Toshio Fujita, Kiyotaka Tatekawa, Shingo Fujisawa, Eiji Shibuya | 2005-11-15 |
| 6933907 | Variable directivity antenna and variable directivity antenna system using such antennas | Shingo Fujisawa | 2005-08-23 |
| 6914558 | Variable directivity antenna apparatus and receiver system using such antenna apparatus | Toshio Fujita, Kiyotaka Tatekawa, Eiji Shibuya | 2005-07-05 |
| 6774863 | Antenna system | Kiyotaka Tatekawa, Eiji Shibuya, Shingo Fujisawa, Shotaro Horii | 2004-08-10 |
| 5006858 | Microstrip line antenna with crank-shaped elements and resonant waveguide elements | — | 1991-04-09 |
| 4988963 | High frequency coaxial line coupling device | Nobuyuki Ten | 1991-01-29 |