Issued Patents All Time
Showing 26–41 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8340316 | Directional microphone device | — | 2012-12-25 |
| 8311236 | Noise extraction device using microphone | — | 2012-11-13 |
| 8249269 | Sound collecting device, sound collecting method, and collecting program, and integrated circuit | Shinichi Yuzuriha | 2012-08-21 |
| 8189765 | Multichannel echo canceller | Tsuyoki Nishikawa, Koichiro Mizushima | 2012-05-29 |
| 8189806 | Sound collection apparatus | Shin-ichi Yuzuriha | 2012-05-29 |
| 8155345 | Wearable terminal, mobile imaging sound collecting device, and device, method, and program for implementing them | Junichi Tagawa | 2012-04-10 |
| 7912230 | Howling detection device and method | Takashi Kawamura | 2011-03-22 |
| 7760888 | Howling suppression device, program, integrated circuit, and howling suppression method | Takashi Kawamura, Tomomi Matsuoka | 2010-07-20 |
| 7577262 | Microphone device and audio player | Takashi Kawamura, Tomomi Matsuoka | 2009-08-18 |
| 7567900 | Harmonic structure based acoustic speech interval detection method and device | Tetsu Suzuki, Takashi Kawamura | 2009-07-28 |
| 6931138 | Zoom microphone device | Takashi Kawamura, Toshihide Ishimoto | 2005-08-16 |
| 6665645 | Speech recognition apparatus for AV equipment | Satoru Ibaraki, Takashi Kawamura, Mikio Oda | 2003-12-16 |
| 6639986 | Built-in microphone device | Takashi Kawamura, Satoru Ibaraki | 2003-10-28 |
| 5633935 | Stereo ultradirectional microphone apparatus | Junichi Tagawa, Satoru Ibaraki, Hiroki Furukawa, Kiminori Ono | 1997-05-27 |
| 5463618 | Echo canceller | Hiroki Furukawa, Junichi Tagawa, Satoru Ibaraki | 1995-10-31 |
| 5058170 | Array microphone | Hiroki Furukawa, Satoru Ibaraki, Michio Matsumoto | 1991-10-15 |