Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11709207 | Power supply device and deterioration determination method of power supply device | — | 2023-07-25 |
| 11275124 | Abnormality cause identifying method, abnormality cause identifying device, power converter and power conversion system | Kazuyoshi Umezawa, Satoshi Ishida, Yasuyuki Noto | 2022-03-15 |