Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8902013 | Dynamic range compression circuit and class D amplifier | Shinji Yaezawa | 2014-12-02 |
| 8502602 | Class-D amplifier circuit | Katsuya Hirano | 2013-08-06 |
| 8289075 | Class-D amplifier | Tatsuya Kishii, Moritaka Iyoda, Toshio Maejima, Masayoshi Nakamura, Masato Miyazaki +1 more | 2012-10-16 |
| 8159305 | Amplifying device | Tatsuya Kishii, Masayoshi Nakamura, Masato Miyazaki, Akihisa Himeno | 2012-04-17 |
| 8040184 | Class-D amplifier | — | 2011-10-18 |
| 7961011 | Amplifier | Masayuki Iwamatsu | 2011-06-14 |
| 7714653 | Differential amplifier | Shinji Yaezawa, Yuya Hashimoto, Toru Nakamori, Tatsuya Kishii | 2010-05-11 |
| 6503647 | Battery protection device and method of making same | Akitsugu Sugiyama, Kouzoh Nagano, Eiji Teshima | 2003-01-07 |