Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4572149 | Air/fuel ratio control system for an internal combustion engine | Shumpei Hasegawa, Michitaka Shiraiwa | 1986-02-25 |
ST
Sadatomo Tsuchiya
Overall (All Time): #3,990,997 of 4,157,543Top 100%
1
Patents All Time