Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4621493 | Secondary air supply system for internal combustion engine | Hajime Kawasaki | 1986-11-11 |
YM
Yukuo Matsunaga
Overall (All Time): #4,004,617 of 4,157,543Top 100%
1
Patents All Time