Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11193266 | Flush toilet | Hiroaki Watanabe, Tomoya Sasaki, Ryuichi Yokoi | 2021-12-07 |
| 10435878 | Flush toilet | Hiroaki Watanabe, Tomoya Sasaki, Ryuichi Yokoi | 2019-10-08 |
| 10294644 | Flush toilet | Hiroaki Watanabe, Yukihiro Inoue, Tooru Higashino, Masato Takeda, Akiya Oohira +4 more | 2019-05-21 |