Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8634546 | Signal processing device, echo canceller, and signal processing method | — | 2014-01-21 |
| 7778430 | Flesh conducted sound microphone, signal processing device, communication interface system and sound sampling method | Yoshitaka Nakajima, Makoto Shozakai | 2010-08-17 |