Issued Patents All Time
Showing 26–49 of 49 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10052587 | Exhaust purification system | Takayuki Sakamoto, Daiji Nagaoka | 2018-08-21 |
| 9828899 | Exhaust gas purification system and exhaust gas purification method | Daiji Nagaoka, Hiroyuki Yuza | 2017-11-28 |
| 9604176 | Exhaust gas purification system and exhaust gas purification method | Daiji Nagaoka | 2017-03-28 |
| 9562463 | Control method for exhaust gas aftertreatment device | Daiji Nagaoka, Hiroyuki Yuza | 2017-02-07 |
| 9447743 | Exhaust gas purification system and exhaust gas purification method | Daiji Nagaoka, Tomohiro Korenaga | 2016-09-20 |
| 9222394 | Diesel engine exhaust gas purification method and exhaust gas purification system | Daiji Nagaoka, Hiroyuki Yuza | 2015-12-29 |
| 9051859 | Exhaust gas purification device and control method for exhaust gas purification device | Daiji Nagaoka, Hiroyuki Yuza | 2015-06-09 |
| 9032713 | Exhaust-pipe injection system | Daiji Nagaoka, Tomohiro Korenaga | 2015-05-19 |
| 8973431 | Apparatus for diagnosing causes of NOx conversion efficiency degradation | Daiji Nagaoka | 2015-03-10 |
| 8973348 | Exhaust gas purification device | Daiji Nagaoka | 2015-03-10 |
| 8973430 | Diesel particulate filter system | Daiji Nagaoka, Hiroyuki Yuza | 2015-03-10 |
| 8671661 | Exhaust gas purification method and exhaust gas purification system | Daiji Nagaoka, Hiroyuki Yuza | 2014-03-18 |
| 8656704 | Fuel injection control device | Daiji Nagaoka, Akihide Oogushi, Hiroyuki Yuza | 2014-02-25 |
| 8607551 | Exhaust gas purifier and system for exhaust gas purification | Daiji Nagaoka, Hiroyuki Yuza | 2013-12-17 |
| 8561396 | Exhaust gas purification apparatus | Daiji Nagaoka, Akihide Oogushi, Hiroyuki Yuza | 2013-10-22 |
| 8528320 | System for exhaust gas purification and method of controlling the same | Daiji Nagaoka, Hiroyuki Yuza | 2013-09-10 |
| 8322130 | Method for controlling exhaust gas purification system and exhaust gas purification system | Hiroyuki Yuza, Daiji Nagaoka | 2012-12-04 |
| 6688279 | Compression-ignition internal combustion engine | Naoya Ishikawa, Yutaka Uematsu, Masato Honda, Tetsuya Honma, Jin Yokoyama +1 more | 2004-02-10 |
| 6155226 | Engine | Hisashi Ozawa | 2000-12-05 |
| 5839351 | Piston | — | 1998-11-24 |
| 5682808 | Piston with a diametric reduction of a skirt portion greater on the thrust side, than that on the counter-thrust side | — | 1997-11-04 |
| 5307781 | Cam shaft for fuel injection pump | Yuichi Murata, Naoyuki Soma | 1994-05-03 |
| 4365600 | Diesel throttle valve control system | Mitsuo Iwahara | 1982-12-28 |
| 4354465 | Diesel throttle valve control system | Koichi Takeuchi, Mitsuo Iwahara | 1982-10-19 |