Issued Patents 2017
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9840954 | Exhaust purification device for internal combustion engine | Hiromasa Nishioka, Kazuhiro Ito, Yoshihisa Tsukamoto, Hiroshi Otsuki, Yasumasa Notake +1 more | 2017-12-12 |
| 9790828 | Exhaust purification system for internal combustion engine | Kazuhiro Itou, Hiromasa Nishioka | 2017-10-17 |
| 9718026 | Exhaust gas purification filter | Hiroshi Otsuki, Hiromasa Nishioka, Yoshihisa Tsukamoto, Kazuhiro Itoh, Ryota Koutake | 2017-08-01 |
| 9689296 | Exhaust purification device for internal combustion engine | Hiromasa Nishioka, Kazuhiro Itoh, Ryota Koutake | 2017-06-27 |
| 9677442 | Sulfur concentration determination system for an internal combustion engine | Hiromasa Nishioka | 2017-06-13 |