Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11139782 | Amplification apparatus and transmission apparatus | Atsushi Yamaoka, Keiichi Yamaguchi | 2021-10-05 |
| 11025211 | Amplification apparatus and transmission apparatus | Atsushi Yamaoka, Keiichi Yamaguchi | 2021-06-01 |
| 10250344 | Broadcast of audio data based on input broadcast signals stored during a detected anomaly period by lightning energy | Seiki Katayama, Hideki Nagao | 2019-04-02 |
| 9692377 | Digital amplitude modulation device and digital amplitude modulation control method | — | 2017-06-27 |
| 9654065 | Digital amplitude modulation device and digital amplitude modulation method | Seiki Katayama | 2017-05-16 |
| 9263881 | Digital amplitude modulation apparatus and control method of digital amplitude modulation apparatus | Seiki Katayama | 2016-02-16 |
| 9184700 | Digital amplitude modulator and control method for digital amplitude modulator | Seiki Katayama | 2015-11-10 |
| 9072175 | Synthesizer for transmitter and digital amplitude modulator | Yoshihiko Takahashi | 2015-06-30 |