Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9823220 | NOx concentration detection apparatus and NOx concentration detection method | Kenji Kato, Kouji Shiotani, Takeshi Kawai | 2017-11-21 |
| 9631999 | NOx detection apparatus and NOx sensor system | Hirotaka Onogi, Kenji Kato | 2017-04-25 |