Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11029039 | Heating and hot water supplying device | Yasushi Morita, Yasutaka Kuriyama, Hiroshi Morimoto, Midori Yokoyama, Haruhiko Tamada | 2021-06-08 |
| 10989442 | Heating and hot water supply device | Yasutaka Kuriyama, Yasushi Morita, Hiroshi Morimoto, Midori Yokoyama, Haruhiko Tamada | 2021-04-27 |
| 10890359 | Heating and hot water supply device | Yasutaka Kuriyama, Yasushi Morita, Hiroshi Morimoto, Midori Yokoyama | 2021-01-12 |