Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8053917 | Variable-speed power generator and method of controlling the same | Akira Yasugi, Takatoshi Matsushita, Takehiro Naka, Takumi Nakashima | 2011-11-08 |
| 8026623 | Wind turbine generator, active damping method thereof, and windmill tower | Kazunari Ide, Yoshiyuki Hayashi, Masaaki Shibata | 2011-09-27 |
| 7982327 | Wind turbine generator system and control method of the same | Shinji Arinaga, Takatoshi Matsushita | 2011-07-19 |
| 7880321 | Wind power generator system | Shinji Arinaga, Takatoshi Matsushita | 2011-02-01 |