Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835540 | Microstrip antenna | Kuniaki Shiramatsu, Shigeo Udagawa, Yukihir0 Yoshikawa | 1989-05-30 |
| 4827270 | Antenna device | Shigeo Udagawa, Nobutake Orime, Takashi Katagi | 1989-05-02 |