Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8761406 | Audio signal processing device and audio signal processing method | Kazunobu Ohkuri, Kohei Asada, Shiro Suzuki, Hiroki Kawanishi | 2014-06-24 |
| 8761414 | Reproduction device and reproduction method | Kohei Asada, Yoshio Ohashi | 2014-06-24 |
| 8401205 | Noise canceling system and noise canceling method | Kohei Asada | 2013-03-19 |
| 8306236 | Sound field measuring apparatus and sound field measuring method | Kohei Asada | 2012-11-06 |
| 8280075 | Apparatus, method and program for processing signal and method for generating signal | Kohei Asada, Kenji Nakano | 2012-10-02 |
| 8218782 | Headphone device, signal processing device, and signal processing method | Kohei Asada, Noriyuki Ozawa | 2012-07-10 |
| 8199936 | Signal converter, output amplifying device, audio apparatus, and transmitting and receiving system | Kohei Asada | 2012-06-12 |
| 8184823 | Headphone device, sound reproduction system, and sound reproduction method | Kohei Asada | 2012-05-22 |
| 8111831 | Acoustic apparatus, time delay computation method, and recording medium | Kohei Asada | 2012-02-07 |
| 8107637 | Signal processing device and signal processing method | Kohei Asada, Noriyuki Ozawa | 2012-01-31 |
| 8094046 | Signal processing apparatus and signal processing method | Kohei Asada, Kazunobu Ohkuri | 2012-01-10 |
| 7822496 | Audio signal processing method and apparatus | Kohei Asada | 2010-10-26 |
| 7676044 | Multi-speaker audio system and automatic control method | Toru Sasaki | 2010-03-09 |
| 6501843 | Automotive audio reproducing apparatus | Junichi Usui | 2002-12-31 |
| 6498856 | Vehicle-carried sound reproduction apparatus | Junichi Usui | 2002-12-24 |