Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4388912 | Exhaust gas recirculation control system for a diesel engine | Yoshiyuki Kimura, Yasutaka Yoshiba | 1983-06-21 |
| 4387694 | EGR Control system for diesel engine | Yasutaka Yoshiba | 1983-06-14 |