Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7459968 | Audio power amplifier IC and audio system provided with the same | Satoshi Oishi, Masatsugu Souma | 2008-12-02 |
| 7079660 | Bass compensation device and a sound system using the device | Hiroyuki Saito | 2006-07-18 |
| 6590984 | Sound quality regulation apparatus | Hiroyuki Saito | 2003-07-08 |