Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12313296 | Heat exchanger and water heater | Shigeo Sugie, Norihide Wada, Kengo Horiuchi, Naoya Shiotsu | 2025-05-27 |
| 11624526 | Heat exchanger and water heating device including the same | Kengo Horiuchi | 2023-04-11 |
| 11293702 | Heat exchanger and hot water apparatus | Norihide Wada | 2022-04-05 |
| 11287158 | Heat exchanger and hot water apparatus | Masaki Kondo | 2022-03-29 |
| 10948236 | Heat exchanger and water heater including same | Norihide Wada, Nobuhiro Takeda | 2021-03-16 |
| 10890356 | Heat exchange device and heat source machine | Naoya Shiotsu, Masaki Kondo, Norihide Wada | 2021-01-12 |
| 10794640 | Heat exchanger and water heater including same | Masaki Kondo | 2020-10-06 |