Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9806728 | Amplifier circuit | Hirotomo Ishii, Kentaro YOSHIOKA | 2017-10-31 |
| 9685974 | Switched capacitor circuit | Hirotomo Ishii, Kentaro YOSHIOKA | 2017-06-20 |
| 9634627 | Amplification circuit and analog/digital conversion circuit | Daisuke Kurose, Hirotomo Ishii | 2017-04-25 |
| 9606511 | Analog/digital conversion circuit | Daisuke Kurose, Hirotomo Ishii | 2017-03-28 |
| 9413373 | Amplifier circuit and pipeline type analog-digital converter | Hirotomo Ishii, Daisuke Kurose | 2016-08-09 |
| 9140229 | Knocking control system for gas engine | Tsukasa Imamura, Tetsuo Tokuoka, Hiroyoshi Ishii | 2015-09-22 |
| 8988268 | Analog-digital converter and analog-digital conversion method | Hirotomo Ishii | 2015-03-24 |
| 8983755 | Control system and control method of gas engine | Tsukasa Imamura | 2015-03-17 |
| 8783226 | Knocking control system for gas engine | Tsukasa Imamura, Tetsuo Tokuoka, Hiroyoshi Ishii | 2014-07-22 |
| 8730083 | Analog-digital converter with calibration and receiver including the converter | Hirotomo Ishii, Masanori Furuta | 2014-05-20 |
| 8659454 | Time error estimating device, error correction device and A/D converter | Takafumi Yamaji, Junya MATSUNO, Masanori Furuta | 2014-02-25 |
| 7928885 | A/D converter | — | 2011-04-19 |
| 6041082 | Digital amplitude modulation amplifier and television broadcasting machine | Haruo Takeda, Yukio Tatsumi, Ikuji Fujitani, Takuya Shioda, Tomofumi Yoshimi +1 more | 2000-03-21 |