Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12270188 | Flush toilet | Hiroshi Hashimoto, Kenichi Nakamura, Shinichi Urata, Kazunari Yasui, Isami Sakaba +2 more | 2025-04-08 |
| 12054929 | Flush toilet | Chisato Sone, Kenichi Nakamura, Hiroshi Hashimoto, Yuichi Tsubone, Kenichi Takano +1 more | 2024-08-06 |
| 12000131 | Flush toilet | Yuichi Tsubone, Chisato Sone, Hiroshi Hashimoto, Yuya Miyake, Kenichi Takano | 2024-06-04 |
| 10358810 | Discharge socket and flush toilet having same | Haruka Saito, Hiroshi Tomonari, Hideto Tomiyoshi, Isami Sakaba | 2019-07-23 |