Issued Patents 2019
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10481012 | Heat exchanger | Masakazu Ando | 2019-11-19 |
| 10465943 | Water heat exchanger with tube drainage member | Takaaki Nakagoshi | 2019-11-05 |
| 10458728 | Turbulence member and heat exchanger using same, and water heater | Hidenao Negi, Takaaki Nakagoshi | 2019-10-29 |
| 10393376 | Indoor installation type combustion apparatus | — | 2019-08-27 |
| 10309686 | Forced air supply type of combustion apparatus | Masakazu Ando | 2019-06-04 |
| 10197343 | Turbulence generator | Hidenao Negi, Takaaki Nakagoshi | 2019-02-05 |