Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12267022 | Power conversion device, power conversion method, and program | Toshihiro Hanada, Shoji Konakahara, Keisei Inoki | 2025-04-01 |
| 11621643 | Bidirectional power conversion | Hirotaka Karakama, Takahiro Uchino, Keisei Inoki | 2023-04-04 |
| 11411507 | Bidirectional power converter | Hirotaka Karakama, Hidenori Hara, Mitsugu Tajima, Yoichi Yano | 2022-08-09 |
| 8348020 | Elevator control device with carrier frequency switch circuit | Hiroaki Ohya, Yoichi Yamamoto | 2013-01-08 |
| 7362069 | Voltage source inverter control method | Yoichi Yamamoto, Shigekazu Nakamura, Hiroshi Suetake | 2008-04-22 |