Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9154874 | Howling detection device, howling suppressing device and method of detecting howling | — | 2015-10-06 |
| 9123322 | Howling suppression device, hearing aid, howling suppression method, and integrated circuit | Mariko Kojima | 2015-09-01 |
| 8731221 | Hearing aid | — | 2014-05-20 |
| 8675901 | Howling suppression device, hearing aid, howling suppression method, and integrated circuit | Mariko Kojima | 2014-03-18 |
| 8477956 | Howling suppression device, howling suppression method, program, and integrated circuit | — | 2013-07-02 |
| 8144895 | Howling control apparatus and acoustic apparatus | — | 2012-03-27 |
| 7796767 | Howling detection method, device, and acoustic device using the same | Yoshiyuki Yoshizumi | 2010-09-14 |
| 7133529 | Howling detecting and suppressing apparatus, method and computer program product | — | 2006-11-07 |
| 6816591 | Voice switching system and voice switching method | Yasuhiro Terada | 2004-11-09 |
| 6674863 | Microphone-speaker apparatus | — | 2004-01-06 |