Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9528621 | Apparatus for shutting off flow of water through ductwork | Toshiaki Morii, Toru ITAGAKI, Kyouichi Nakayasu | 2016-12-27 |
| 9267253 | Land-mounted flap gate | Kyouichi Nakayasu, Ryouta Yoshiki, Toshiaki Morii | 2016-02-23 |