Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4450680 | Air/fuel ratio control system for internal combustion engines, having secondary air supply control | Kazuo Otsuka, Shin Narasaka | 1984-05-29 |
HS
Hasegawa Shumpei
Overall (All Time): #4,035,002 of 4,157,543Top 100%
1
Patents All Time