Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10690073 | Exhaust purification system and catalyst regeneration method | Teruo Nakada, Takayuki Sakamoto, Daiji Nagaoka | 2020-06-23 |
| 10392985 | Exhaust purification system | Masaaki Nishito, Teruo Nakada, Takayuki Sakamoto, Daiji Nagaoka | 2019-08-27 |
| 9447743 | Exhaust gas purification system and exhaust gas purification method | Daiji Nagaoka, Teruo Nakada | 2016-09-20 |
| 9278313 | Exhaust gas purification system and exhaust gas purification method | Daiji Nagaoka | 2016-03-08 |
| 9032713 | Exhaust-pipe injection system | Daiji Nagaoka, Teruo Nakada | 2015-05-19 |