Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11701971 | Three-phase AC motor drive device, rail vehicle equipped with same, and three-phase AC motor drive method | Takeshi Shinomiya, Naoki Kunihiro, Kazutoshi Ogawa, Katsumi Ishikawa, Kuniaki Otsuka +4 more | 2023-07-18 |
| 10946856 | Vehicle drive system | Hajime Oyama, Shigeo Yoshikawa, Hideki Sanai | 2021-03-16 |