Issued Patents 2022
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11408643 | Water heating apparatus with immediate hot water supply function and water heating system | — | 2022-08-09 |
| 11391469 | Hot-water supply device | Atsushi Ushio, Ryo Takahashi | 2022-07-19 |
| 11378283 | Hot water supply device | Atsushi Ushio | 2022-07-05 |