Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10080000 | Intercom system | Hirofumi Kasedou, Takashi Yamamoto | 2018-09-18 |
| 9635322 | Video intercom device | Takashi Yamamoto, Shinji Fukuda | 2017-04-25 |
| 9629099 | Radio communication apparatus and transmission power control method | Takashi Yamamoto, Kouji Yoshida, Takashi Terada, Shinji Fukuda, Katsumi Nakagawa | 2017-04-18 |
| 9549151 | Video intercom device | Takashi Yamamoto, Shinji Fukuda | 2017-01-17 |
| 9516399 | Wireless microphone system and transmission power control method | Takashi Yamamoto, Kouji Yoshida | 2016-12-06 |