Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12416142 | Discharge valve device, flush water tank device, and flush toilet | Yuta KONDO, Koichiro Hiwa, Yuki Shimokawa | 2025-09-16 |
| 12258744 | Flush water tank device and flush toilet apparatus provided with the same | Yuta KONDO, Koichiro Hiwa, Yuki Shimokawa, Kenji HATAMA | 2025-03-25 |
| 9499964 | Flush water supply device, flush water tank assembly with flush water supply device, and flush toilet with flush water tank assembly | Atsuko Yamasaki, Yuichi Oda, Yukinori Kubozono, Hisashi Koga | 2016-11-22 |
| 8918922 | Water discharge valve device and flush water tank device with same | Tsutomu Kido, Yukinori Kubozono, Hisashi Koga | 2014-12-30 |
| 8745772 | Discharge valve apparatus and rinse water tank apparatus fitted therewith | Tsutomu Kido, Yukinori Kubozono, Hisashi Koga | 2014-06-10 |
| 8720480 | Flush water supply device, flush water tank assembly with flush water supply device, and flush toilet with flush water tank assembly | Atsuko Yamasaki, Yuichi Oda, Hisashi Koga, Yukinori Kubozono | 2014-05-13 |
| 7966676 | Toilet bowl flushing water tank device | Yoichiro Ueno, Eiji Fukuzawa, Yukihiro Muroya | 2011-06-28 |