Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6034643 | Directional beam antenna device and directional beam controlling apparatus | Kunitoshi Nishikawa, Tomohisa Harada, Toshiaki Watanabe, Eiji Teramoto | 2000-03-07 |
| 5900836 | Tracking antenna system | Kunitoshi Nishikawa, Tomohisa Harada, Toshiaki Watanabe | 1999-05-04 |
| 5675346 | Annular microstrip antenna element and radial line antenna system employing the same | Kunitoshi Nishikawa, Toshiaki Watanabe, Tomohisa Harada | 1997-10-07 |
| 5557116 | Semiconductor laser device and resin layer | Katsushige Masui, Nobuyuki Miyauchi, Zenpei Tani, Hiroshi Chikugawa, Makoto Tsuji +1 more | 1996-09-17 |
| 5127015 | Driving circuit of a semiconductor laser | Hiroshi Chikugawa, Kunio Suzuki | 1992-06-30 |