Issued Patents 2025
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12313296 | Heat exchanger and water heater | Takeshi Ohigashi, Norihide Wada, Kengo Horiuchi, Naoya Shiotsu | 2025-05-27 |
| 12264818 | Premixing device and combustion device including the premixing device | Kyohei OGAWA | 2025-04-01 |