Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9181842 | Temperature sensor, sulfur component detector, and exhaust purification system for internal combustion engine | Kazuhiro Umemoto, Hiromasa Nishioka, Yoshihisa Tsukamoto, Junichi Matsuo, Takamitsu Asanuma +3 more | 2015-11-10 |
| 8887492 | Exhaust gas purification apparatus of an internal combustion engine | Hiromasa Nishioka, Hiroshi Otsuki, Kohei Yoshida, Takamitsu Asanuma | 2014-11-18 |
| 8640442 | Exhaust purification device of internal combustion engine | Hiromasa Nishioka, Takamitsu Asanuma, Kohei Yoshida | 2014-02-04 |
| 8443592 | Exhaust purification system of internal combustion engine | Takamitsu Asanuma, Hiromasa Nishioka, Daichi Imai, Kazuhiro Umemoto | 2013-05-21 |
| 8156787 | Device for detection of sulfur concentration in fuel or oil | Takamitsu Asanuma, Kohei Yoshida, Hiromasa Nishioka, Hiroshi Otsuki | 2012-04-17 |