Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10644667 | Sound processing device, sound control device, and sound control method | Kazuhiro Watanabe, Kazuhiro Uchida | 2020-05-05 |
| 9257945 | Amplifier apparatus | Mingxue Zhang, Tsuyoshi Haga | 2016-02-09 |
| 9203359 | Amplifier and audio device provided with amplifier | Tsuyoshi Haga | 2015-12-01 |
| 9136799 | Amplifier using voltage variable power supply | Hirotsugu Kawata | 2015-09-15 |
| 9077295 | Class D amplification device | — | 2015-07-07 |
| 9036836 | Amplifier apparatus | Mingxue Zhang, Tsuyoshi Haga | 2015-05-19 |
| 8686792 | Amplifying device | Rintaro Sukegawa | 2014-04-01 |
| 6687680 | Electronic cash register system | Kesayoshi Iguchi, Hiroyuki Tanaka, Masanobu Shigeno, Takashi Kondoh, Kazuya Murakami +4 more | 2004-02-03 |