Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5633577 | Battery charging system for electric vehicles | Yoshihiko OOYAMA, Keiichiro Banzai | 1997-05-27 |
| 4485569 | Spud arrangement for a dredge | Hisayoshi Myojin, Sumitada Morishita | 1984-12-04 |