Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11344166 | Toilet seat device | Isato Hirasawa | 2022-05-31 |
| 11111662 | Flush toilet | Isato Hirasawa, Tomoya Sasaki, Takeya Ichiyanagi, Sou Okuizumi, Makoto Saruta | 2021-09-07 |
| 10837162 | Toilet device | Isato Hirasawa, Kentarou TSUJI, Hiroto KUTSUZAWA, Tomoya Sasaki, Hiroaki Watanabe +3 more | 2020-11-17 |
| 10450735 | Flush toilet | Isato Hirasawa, Tomoya Sasaki, Takeya Ichiyanagi, Makoto Saruta | 2019-10-22 |
| 10136775 | Toilet bowl apparatus and seal member | Isato Hirasawa, Yasuhiro Kondo, Takeya Ichiyanagi | 2018-11-27 |