Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9903081 | Floating flap gate | Toru ITAGAKI, Shinichi Sayama | 2018-02-27 |
| 9267253 | Land-mounted flap gate | Kyouichi Nakayasu, Yuuichiro KIMURA, Toshiaki Morii | 2016-02-23 |
| 9091033 | Floating flap gate | Kyouichi Nakayasu, Toshiaki Morii, Masaki Inui, Yuuichirou Kimura | 2015-07-28 |