Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9926682 | Door structure for floating flap gate | Hiroaki Arai, Hideyuki Niizato, Koji Kitamura, Jun Okada, Kyouichi Nakayasu +1 more | 2018-03-27 |
| 9779844 | Containment cask for radioactive material | Hiroaki Arai, Koji Kitamura, Jyun Okada, Toki Ma | 2017-10-03 |