Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11732689 | Wind turbine drive control device, wind turbine power supply device, wind power generation device, and control method | Hirofumi Komori | 2023-08-22 |
| 8823200 | Drive unit for windmill | Naohiko Yamamoto | 2014-09-02 |
| 8777574 | Windmill pitch driving apparatus | Yoji Asano, Katsuhiko Yokoyama | 2014-07-15 |
| 7043907 | Electro-hydraulic actuation system | Youji Asano, Nobuaki Shimizu | 2006-05-16 |
| 6439101 | Electro-hydraulic servomotor | Nobuaki Shimizu, Youji Asano | 2002-08-27 |