Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10428507 | Flush toilet | Hiroshi Hashimoto, Shinichi Urata, Shuichi Nagashima, Mayu Okubo, Shoko Imaizumi +2 more | 2019-10-01 |
| 10344464 | Flush toilet | Hiroshi Hashimoto, Shinichi Urata, Shuichi Nagashima, Mayu Okubo, Shoko Imaizumi +2 more | 2019-07-09 |
| 10323400 | Wash-out type toilet | Hiroshi Hashimoto, Shinichi Urata, Shuichi Nagashima, Mayu Okubo, Shoko Imaizumi +2 more | 2019-06-18 |