Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8078392 | Unburned fuel amount-estimating device in engine and temperature-estimating device of exhaust emission purifier | Shigeto Yahata, Tsutomu Soga | 2011-12-13 |
| 7930879 | Control device for internal combustion engine | Kazuo Kojima, Shigeto Yahata, Atsushi Takano | 2011-04-26 |