Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10167619 | Urinal with separate water supplying and water spraying devices | Toshinari Yaoka, Yoichi Murase, Satoshi Matsunaka, Yusuke Araki, Yusuke Nakamura +2 more | 2019-01-01 |
| 9988803 | Urinal having continuously curved bowl surface | Minoru Tani, Yusuke Takiguchi, Tomohiro Kai, Hironori Yamasaki | 2018-06-05 |
| 9739043 | Urinal | Yoshifumi Seki, Satoshi Matsunaka, Hironori Yamasaki | 2017-08-22 |
| 9624657 | Urinal | Satoshi Matsunaka, Hironori Yamasaki | 2017-04-18 |
| RE42840 | Stool flushing device | Kentaro Todoroki, Kuniaki Shinohara, Toshio Koguro, Mie Ikushima | 2011-10-18 |
| 6948194 | Stool flushing device | Kentaro Todoroki, Kuniaki Shinohara, Toshio Koguro, Mie Ikushima | 2005-09-27 |