Patents by Inventor Yasuto Fujino

Yasuto Fujino has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Wind turbine generator and nacelle turning method
    Patent number: 8461707
    Abstract: A wind turbine generator is provided with: a nacelle mounting a wind turbine rotor; a yaw drive device generating drive force for causing yaw turning of the nacelle; a brake mechanism generating braking force for braking the turning of the nacelle; a control system controlling the yaw drive device and the brake mechanism; and a wind speed measurement device measuring wind speed. When detecting occurrence of a high wind speed state based on the wind speed while the nacelle is turned by the yaw drive device, the control device provides braking force for the nacelle by using the brake mechanism in response to the detection of the occurrence of the high wind speed state.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: June 11, 2013
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Yasuto Fujino, Seita Seki, Yoshiyuki Hayashi, Tomohiro Numajiri
  • WIND TURBINE GENERATOR AND NACELLE TURNING METHOD
    Publication number: 20110309620
    Abstract: A wind turbine generator is provided with: a nacelle mounting a wind turbine rotor; a yaw drive device generating drive force for causing yaw turning of the nacelle; a brake mechanism generating braking force for braking the turning of the nacelle; a control system controlling the yaw drive device and the brake mechanism; and a wind speed measurement device measuring wind speed. When detecting occurrence of a high wind speed state based on the wind speed while the nacelle is turned by the yaw drive device, the control device provides braking force for the nacelle by using the brake mechanism in response to the detection of the occurrence of the high wind speed state.
    Type: Application
    Filed: February 8, 2010
    Publication date: December 22, 2011
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Yasuto Fujino, Seita Seki, Yoshiyuki Hayashi, Tomohiro Numajiri