Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8050931 | Sound masking system and masking sound generation method | Atsuko Ito, Yasushi Shimizu, Masato Hata | 2011-11-01 |
| 7995768 | Sound reinforcement system | Atsuko Ito | 2011-08-09 |
| 7940938 | Sound reproducing apparatus | Masayoshi Sahara | 2011-05-10 |
| 7903539 | Electronic control unit | Takaaki Fukushima, Yousuke Matsumoto | 2011-03-08 |