| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 21 |
| # | Industry | |
|---|---|---|
| #1 | Telecommunications | |
| #2 | Audio-visual technology |
| # | Technology | |
|---|---|---|
| #1 | Antennas | |
| #2 | Transmission | |
| #3 | Television |
| # | Name | Total Patents |
|---|---|---|
| #1 | Shibuya Eiji | 8 |
| #2 | Shirosaka Toshiaki | 8 |
| #3 | Fujita Toshio | 7 |
| #4 | Fujisawa Shingo | 7 |
| #5 | Tatekawa Kiyotaka | 7 |
| #6 | Horii Shotaro | 5 |
| #7 | Yoshii Takayuki | 3 |
| #8 | Matsui Yoshikazu | 2 |
| #9 | Nagatomi Akihiko | 1 |
| #10 | Fujita Kenichi | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US6933907B2 | Variable directivity antenna and variable directivity antenna system using such antennas | |
| US6859182B2 | Antenna system | |
| US6498589B1 | Antenna system |