Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851855 | Planar antenna | Katsuya Tsukamoto, Kyozi Masamoto, Yasuhiro Fujii | 1989-07-25 |
| 4829309 | Planar antenna | Katsuya Tsukamoto, Yasuhiro Fujii, Yasumasa Ogawa, Sadaaki Kondo, Kyoji Masamoto +6 more | 1989-05-09 |