Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12416142 | Discharge valve device, flush water tank device, and flush toilet | Haruki Matsuda, Koichiro Hiwa, Yuki Shimokawa | 2025-09-16 |
| 12258744 | Flush water tank device and flush toilet apparatus provided with the same | Koichiro Hiwa, Yuki Shimokawa, Kenji HATAMA, Haruki Matsuda | 2025-03-25 |
| 11445932 | Biological information measurement device and biological information measurement system | Yasuhide Hyodo, Kazunari Yoshifuji, Takanori Ishikawa | 2022-09-20 |
| 9642193 | Low-oxygen atmosphere apparatus | — | 2017-05-02 |