Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10787780 | Flood prevention device | Yuichiro Kimura, Yoshito Yamakawa, Toshiaki Morii, Kyoichi Nakayasu | 2020-09-29 |
| 10697144 | Rotation bearing of flap gate and flap gate | Yuichiro Kimura, Toshiaki Morii, Yoshito Yamakawa, Kyoichi Nakayasu | 2020-06-30 |