Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7900600 | Homogeneous charge compressed ignition engine operating method | Hiroyuki Ohtsubo, Takayuki Shirouzu | 2011-03-08 |
| 7802556 | Homogeneous charge compressed ignition engine operating method | Hiroyuki Ohtsubo, Takayuki Shirouzu | 2010-09-28 |
| 7032568 | Fuel feed device of gas engine | Ryouichi Hagiwara | 2006-04-25 |
| 7010907 | Exhaust gas cleanup device for internal combustion engine | Shogo Matsubayashi | 2006-03-14 |
| 6289720 | Method of knocking control of internal combustion engine | Minoru Ohkubo | 2001-09-18 |