Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8033103 | Exhaust purification device | Masakuni Yokoyama | 2011-10-11 |
| 7886521 | Diagnosis device of exhaust purification catalyst | Masakuni Yokoyama | 2011-02-15 |
| 7707823 | Exhaust purification device for internal combustion engine | Masakuni Yokoyama | 2010-05-04 |
| 7513245 | Engine torque control apparatus and method for adjusting engine torque control apparatus | Youhei Morimoto, Hiroshi Haraguchi, Kazuo Kojima | 2009-04-07 |