Issued Patents 2019
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10476259 | Power conversion device and method for determining operational state of breaking device | Naoki Ayai, Koichi Takeshita, Fumio Urakawa, Shinjirou Shinada, Tadatsugu Udono | 2019-11-12 |
| 10461625 | Power conversion device and control method for same | Naoki Ayai | 2019-10-29 |
| 10355620 | Conversion device | Naoki Ayai, Tetsuo Akita, Kenji Abiru | 2019-07-16 |
| 10348190 | Conversion device for converting voltage in a non-insulated manner and method for controlling the same | Yusuke Shimizu, Tetsuo Akita, Naoki Ayai | 2019-07-09 |
| 10277036 | Inverter device | Naoki Ayai, Kenji Abiru | 2019-04-30 |
| 10193434 | Power conversion device and three-phase AC power supply device | Naoki Ayai | 2019-01-29 |