Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12205570 | Hollow structure and resonant sound reducing body | Azumi Yoshida | 2025-01-21 |
| 12073817 | Sound absorbing member, sound absorbing apparatus, and sound absorbing structure | Kiyoyuki TOMIMATSU | 2024-08-27 |
| 11869473 | Hollow structure and resonant sound reducing body | Azumi Yoshida | 2024-01-09 |
| 11546679 | Speaker system and vehicle door therewith | — | 2023-01-03 |
| 11514879 | Sound absorbing apparatus and sound absorption structure | — | 2022-11-29 |
| 11445292 | Speaker system and vehicle door | Hideki Harada | 2022-09-13 |
| 11019424 | Speaker system and vehicle door | Koichi Morita, Yusuke Sugino | 2021-05-25 |
| 9479851 | Vehicle sound generation apparatus, and vehicle sound generation method | Hideki Osawa, Heiji Maruyama, Yasuyuki Suzuki, Yosuke Kuno, Hirofumi Onitsuka | 2016-10-25 |
| 9327644 | Sound generating device for vehicle, and sound generating method for vehicle | Hideki Osawa, Heiji Maruyama, Yasuyuki Suzuki, Yosuke Kuno, Hirofumi Onitsuka | 2016-05-03 |
| 9214148 | Acoustic structure | Shinichi Kato | 2015-12-15 |
| 8885845 | Engine sound processing system | Yasuo Yoshioka, Tetsu Kobayashi | 2014-11-11 |
| 8714303 | Acoustic structure | Eizo Amiya | 2014-05-06 |
| 8631901 | Acoustic structure | Junichi Fujimori, Makoto Kurihara | 2014-01-21 |
| 8177022 | Transmitted sound control apparatus | — | 2012-05-15 |
| 8157052 | Acoustic structure | Junichi Fujimori | 2012-04-17 |
| 8155343 | Engine sound processing system | Yasuo Yoshioka, Akio Takahashi | 2012-04-10 |
| 8006802 | Acoustic structure and acoustic room | — | 2011-08-30 |
| 7961894 | Engine sound processing system | — | 2011-06-14 |
| 7925008 | Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatus | Toru Hirai, Mikio Tohyama, Hiraku Okumura, Hiroshi Iriyama, Koji Niimi | 2011-04-12 |
| 7925006 | Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatus | Toru Hirai, Mikio Tohyama, Hiraku Okumura, Hiroshi Iriyama, Koji Niimi | 2011-04-12 |
| 7403609 | Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatus | Toru Hirai, Mikio Tohyama, Hiraku Okumura, Hiroshi Iriyama, Koji Niimi | 2008-07-22 |
| 7130428 | Picked-up-sound recording method and apparatus | Toru Hirai, Fukushi Kawakami, Yasushi Shimizu, Masahiro Ikeda, Mikio Tohyama | 2006-10-31 |
| 7114302 | Floor structure and floor base panel | Rento Tanase, Tetsu Kobayashi | 2006-10-03 |
| 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 | Toru Hirai, Mikio Tohyama, Aya Togura | 2005-09-27 |