Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9518762 | Hot water supply system, water heater and hot water supply control method | Yasutaka Hatada, Kazuhiko Nakagawa | 2016-12-13 |
| 9182159 | Water heater and control method therefor | Yasutaka Hatada, Kazuhiko Nakagawa | 2015-11-10 |
| 8868251 | Hot water supply system, water heater and hot water supply control method | Yasutaka Hatada, Kazuhiko Nakagawa | 2014-10-21 |