Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8640447 | Exhaust emission control device for internal combustion engine | Tomohiro Nishi, Norihiko Suzuki, Kenji Katayama | 2014-02-04 |
| 8601802 | Exhaust gas purifying device | Yasuo Yamada, Noritaka Sekiya | 2013-12-10 |