Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4196709 | After burning preventive system for an internal combustion engine | Kazuo Toryu, Fumio Okada | 1980-04-08 |
HS
Hiraki Sawada
Overall (All Time): #4,109,477 of 4,157,543Top 100%
1
Patents All Time