Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7929720 | Position detecting system, speaker system, and user terminal apparatus | Toshiaki Ishibashi, Naohiro Emoto | 2011-04-19 |
| 7920710 | Loudspeaker apparatus | Yusuke Konagai | 2011-04-05 |