Issued Patents All Time
Showing 1–25 of 33 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 |
| 9422848 | Internal combustion engine and control method for same | Daiji Nagaoka | 2016-08-23 |
| 8713916 | NOx purification system and method for control of NOx purification system | Daiji Nagaoka | 2014-05-06 |
| 8356470 | Method of controlling NOx purification system and NOx purification system | Daiji Nagaoka, Hiroyuki Yuza | 2013-01-22 |
| 8341943 | Exhaust gas purification method and exhaust gas purification system | Daiji Nagaoka | 2013-01-01 |
| 8186148 | Exhaust gas purifying method and purifier | Daiji Nagaoka | 2012-05-29 |
| 8109080 | Method of controlling NOx purification system and NOx purification system | Daiji Nagaoka | 2012-02-07 |
| 8056321 | Exhaust gas purification method and exhaust gas purification system | Daiji Nagaoka | 2011-11-15 |
| 8058205 | Nitrogen oxide purification system | Daiji Nagaoka | 2011-11-15 |
| 8051642 | Method of controlling NOx purification system and NOx purification system | Daiji Nagaoka | 2011-11-08 |
| 8037676 | Regeneration control method for exhaust gas purification system, and exhaust gas purification system | Daiji Nagaoka | 2011-10-18 |
| 7963103 | Exhaust gas purification method and system | Daiji Nagaoka | 2011-06-21 |
| 7963109 | Guide structure and exhaust gas purification device | Daiji Nagaoka | 2011-06-21 |
| 7797927 | Method for control of exhaust gas purification system, and exhaust gas purification system | Daiji Nagaoka, Takehito Imai, Shinji Hara | 2010-09-21 |
| 7716918 | Method of exhaust gas purification and exhaust gas purification system | Daiji Nagaoka | 2010-05-18 |
| 7669410 | Sulfur purge control method for exhaust gas purifying system and exhaust gas purifying system | Daiji Nagaoka | 2010-03-02 |
| 7451593 | Exhaust gas cleaning method and exhaust gas cleaning system | Daiji Nagaoka, Takayuki Sakamoto | 2008-11-18 |
| 7448203 | Exhaust gas decontamination system and method of exhaust gas decontamination | Daiji Nagaoka | 2008-11-11 |
| 7337608 | Exhaust gas cleaning system | Yoshihisa Tashiro | 2008-03-04 |
| 7210285 | Internal combustion engine exhaust gas purifying system | Hitoshi Sato, Naofumi Ochi, Takehito Imai, Takashi Urata | 2007-05-01 |
| 7207171 | Exhaust gas purifying method and exhaust gas purifying system | Daiji Nagaoka | 2007-04-24 |
| 7191590 | Exhaust gas purifying method and exhaust gas purifying system | Daiji Nagaoka | 2007-03-20 |
| 7115237 | Exhaust gas purifying method and exhaust gas purifying system | Hitoshi Sato, Naofumi Ochi, Takehito Imai | 2006-10-03 |