Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8144762 | Band extending apparatus and method | — | 2012-03-27 |
| 7979718 | Operator recognition device, operator recognition method and operator recognition program | Soichi Toyama, Ikuo Fujita | 2011-07-12 |
| 7957964 | Apparatus and methods for noise suppression in sound signals | — | 2011-06-07 |
| 7224728 | Pulse width modulator and pulse width modulation method | — | 2007-05-29 |
| 7016837 | Voice recognition system | Hiroshi Seo, Soichi Toyama | 2006-03-21 |
| 6937981 | Voice recognition system | Hiroshi Seo, Soichi Toyama | 2005-08-30 |
| 6873275 | Digital signal conversion apparatus, digital signal conversion method, and computer-readable recording medium in which digital signal conversion program is recorded | Keiichi Yamauchi | 2005-03-29 |
| 5497154 | Dither generating apparatus | — | 1996-03-05 |