Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12404838 | Backlash measuring method, wind turbine diagnosing method, and backlash measuring apparatus | Hirofumi Komori | 2025-09-02 |
| 12286959 | Wind turbine drive control device and control method of wind turbine drive | — | 2025-04-29 |
| 11885304 | Wind turbine system, wind turbine control device, driving method, and tangible computer-readable storage medium storing program | — | 2024-01-30 |
| 11619208 | Wind turbine drive system and wind turbine | Haruna Osako | 2023-04-04 |
| 11614072 | Wind turbine drive control device and control method of wind turbine drive device | — | 2023-03-28 |
| 11274655 | Wind turbine driving device, wind turbine driving device unit, and wind turbine | Shigeru Hosoda, Yuichi Asakawa | 2022-03-15 |
| 11047366 | Driving device, driving device unit and wind turbine | Shigeru Hosoda, Kei Kato, Haruna Osako | 2021-06-29 |
| 9790920 | Rotation driving mechanism for windmill | Yuichi Asakawa | 2017-10-17 |
| 9726152 | Rotation driving mechanism for windmill | — | 2017-08-08 |
| 8022564 | Speed reducer for use in yaw drive apparatus for wind power generation apparatus, and yaw drive method and apparatus for wind power generation apparatus using the speed reducer | Katsuhiko Yokoyama, Sadayuki Tanabe | 2011-09-20 |
| 7553249 | Speed reducer, production method for speed reducer, roller bearing, crankshaft and production method for crank shaft | — | 2009-06-30 |
| 6698196 | Drive circuit for fluid motor | Masataka Hashimoto | 2004-03-02 |
| 6679801 | Eccentric oscillating-type speed reducer | Katsuhiko Yokoyama | 2004-01-20 |