Issued Patents 2019
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10465581 | Internal combustion engine and method for removing particulate substance from internal combustion engine | Daiji Nagaoka | 2019-11-05 |
| 10415448 | Exhaust gas cleaning system for internal combustion engine and exhaust gas cleaning method for internal combustion engine | Daiji Nagaoka | 2019-09-17 |
| 10337433 | Exhaust purification system | Masaaki Nishito, Teruo Nakada, Takayuki Sakamoto, Daiji Nagaoka | 2019-07-02 |