Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12282048 | Data collection system, auxiliary power supply, and monitoring device | Tomohisa Maruyama | 2025-04-22 |
| 11296513 | Station building power supply | Shinichi Matsumoto, Shuji Ishikura | 2022-04-05 |
| 10889206 | Station building power supply device and charged-state detection method | Shinichi Matsumoto | 2021-01-12 |
| 10730405 | Station building auxiliary power unit for efficient use of regenerative power | Shinichi Matsumoto, Shuji Ishikura | 2020-08-04 |
| 9221346 | Propulsion control apparatus for electric motor car | Hidetoshi Kitanaka, Keita Hatanaka | 2015-12-29 |
| 8615339 | Control device of electric vehicles | Yutaka Higuchi | 2013-12-24 |