Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9010809 | Oil storage tank and construction vehicle | Wataru Nishiyama, Jun Yonehara | 2015-04-21 |
| 8876163 | Oil storage tank and construction vehicle | Wataru Nishiyama, Jun Yonehara | 2014-11-04 |