Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11437958 | Power amplifying device and audio system | Akira Yamauchi | 2022-09-06 |
| 11171617 | Power amplifying device and audio equipment | Akira Yamauchi | 2021-11-09 |
| 9735762 | Amplifier | Katsuhiro Yasuda | 2017-08-15 |
| 9692371 | Current feedback output circuit | Akira Yamauchi | 2017-06-27 |
| 9602070 | Power amplifying device | — | 2017-03-21 |
| 9083295 | Current feedback output circuit | Akira Yamauchi | 2015-07-14 |
| 9036312 | Semiconductor device | Kazuhiro Kato, Yukio Sato, Takehito IKIMURA, Akira Kumamoto, Hiroyuki Yamamoto +2 more | 2015-05-19 |
| 8908886 | Power amplifying apparatus and audio system | Akira Yamauchi | 2014-12-09 |
| 8604842 | High-side switch circuit | Yuki Sato | 2013-12-10 |
| 8552799 | Power amplifying circuit | — | 2013-10-08 |
| 8232838 | Audio dropout amplifier | Katsuhiro Yasuda, Yuki Sato | 2012-07-31 |
| 8193863 | Push-pull output circuit | — | 2012-06-05 |
| 8050423 | Integrated circuit device and audio system | Akira Yamauchi | 2011-11-01 |
| 7696827 | Power amplifier system provided with improved protection function | Katsuhiro Yasuda | 2010-04-13 |
| 7557660 | Power amplification device | — | 2009-07-07 |
| 7420413 | Amplifier circuit of BTL system | — | 2008-09-02 |
| 7375589 | Power amplifier system provided with improved protection function | Katsuhiro Yasuda | 2008-05-20 |
| 7242250 | Power amplifier | — | 2007-07-10 |
| 6388496 | Semiconductor output circuit | Toshiro Kubota | 2002-05-14 |
| 6107886 | High-efficiency power amplifier | Hiromi Kusakabe | 2000-08-22 |