Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11368019 | Active filter device and air conditioner | Shuta Ishikawa, Shusaku Nakase, Keiichi Yamamoto | 2022-06-21 |
| 11309709 | High-frequency current compensator and air-conditioning system | Shinsaku Kusube, Kazuyuki Mitsushima, Keiichi Yamamoto | 2022-04-19 |