Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7920711 | Audio device and method for generating surround sound having first and second surround signal generation units | Noriyuki Takashima, Hareo Hamada | 2011-04-05 |
| 6944303 | Noise cancellation device, engine-noise cancellation device, and noise cancellation method | — | 2005-09-13 |
| 5524057 | Noise-canceling apparatus | Nozomu Saito, Tatsuo Owaki, Kunio Miyauchi, Akira Suto | 1996-06-04 |
| 5410606 | Noise canceling method | Kenji Imai, Tetsu Kanamori, Syunichi Imanishi, Hideki Sato, Makoto Namekawa +4 more | 1995-04-25 |