Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11400817 | Power conversion controller | Toshimasa Shimizu, Kenji Sato, Hirokazu Kato, Kazuaki Yuuki, Toshiyuki Uchida +3 more | 2022-08-02 |
| 11381192 | Power conversion controller | Toshimasa Shimizu, Kenji Sato, Toshiaki Takami | 2022-07-05 |
| 10516345 | Power conversion controller for electric train | Kenji Sato, Akihiro Koyanagi | 2019-12-24 |