Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9441521 | Method for removing foreign matter from a selective reduction catalyst system | Yasuo Okamoto, Yuuta Kageyama | 2016-09-13 |
| 6923159 | Diesel engine | Kazuyoshi Narita, Shigenobu Nagata | 2005-08-02 |