Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4517930 | Piston of combustion engine | Hideaki Nakano, Tadahiro Ozu | 1985-05-21 |
ES
Eiichi Shirai
Overall (All Time): #4,015,232 of 4,157,543Top 100%
1
Patents All Time