Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10641407 | Flow rate control device | Kazuyuki Morisaki, Kaoru Hirata, Kouji Nishino, Nobukazu Ikeda | 2020-05-05 |
| 7925006 | Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatus | Mikio Tohyama, Hiraku Okumura, Yoshikazu Honji, Hiroshi Iriyama, Koji Niimi | 2011-04-12 |
| 7925008 | Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatus | Mikio Tohyama, Hiraku Okumura, Yoshikazu Honji, Hiroshi Iriyama, Koji Niimi | 2011-04-12 |
| 7596495 | Current noise spectrum estimation method and apparatus with correlation between previous noise and current noise signal | Michiko Kazama, Mikio Tohyama | 2009-09-29 |
| 7403609 | Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatus | Mikio Tohyama, Hiraku Okumura, Yoshikazu Honji, Hiroshi Iriyama, Koji Niimi | 2008-07-22 |
| 7230525 | Tire air pressure monitoring system | — | 2007-06-12 |
| 7130428 | Picked-up-sound recording method and apparatus | Fukushi Kawakami, Yasushi Shimizu, Yoshikazu Honji, Masahiro Ikeda, Mikio Tohyama | 2006-10-31 |
| 6950513 | Impulse response setting method for the 2-channel echo canceling filter, a two-channel echo canceller, and a two-way 2-channel voice transmission device | Yoshikazu Honji, Mikio Tohyama, Aya Togura | 2005-09-27 |