Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6039300 | Gas supply valve for gas-powered vehicle | Seiichi Kimura | 2000-03-21 |
| 5137258 | Ball valve | — | 1992-08-11 |
RT
Risuke Takamatsu
Overall (All Time): #2,236,019 of 4,157,543Top 55%
2
Patents All Time