Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4538413 | Particle removing system for an internal combustion engine | Motohiro Shinzawa, Motomi Arai, Kichihiko Dozono, Yoji Hasegawa | 1985-09-03 |
SR
Shomatsu Roppongi
Overall (All Time): #4,020,767 of 4,157,543Top 100%
1
Patents All Time