Issued Patents 2025
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12313296 | Heat exchanger and water heater | Takeshi Ohigashi, Shigeo Sugie, Norihide Wada, Kengo Horiuchi | 2025-05-27 |
| 12253311 | Heat exchanger and water heating device including the same | Norihide Wada | 2025-03-18 |