Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10795665 | Relay device and hot water supply device | Takahito Hashimoto, Naoki TAWADA | 2020-10-06 |
| 10671374 | Communication system, relay device, and water warmer | Daisuke HIROTA, Takahito Hashimoto, Naoki TAWADA | 2020-06-02 |