Patents by Inventor Koichi OBA

Koichi OBA 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 POWER GENERATION SYSTEM, METHOD FOR CONTROLLING WIND POWER GENERATION SYSTEM, ROTARY ELECTRIC MACHINE SYSTEM, AND CONTROL DEVICE FOR ROTARY ELECTRIC MACHINE
    Publication number: 20150091302
    Abstract: A wind power generation system according to an aspect of an embodiment includes a rotary electric machine and a temperature rise control unit. The temperature rise control unit causes winding of the rotary electric machine to be energized so that the temperature of the rotary electric machine is raised.
    Type: Application
    Filed: September 12, 2014
    Publication date: April 2, 2015
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Koichi OBA, Yasuhiro MIYAMOTO
  • WIND TURBINE GENERATOR SYSTEM
    Publication number: 20150001847
    Abstract: A wind turbine generator system for generating electric power from wind power, the system comprising: a conversion unit configured to convert the electric power generated; a first cooling unit configured to cool the conversion unit; a wind condition data acquisition unit configured to acquire wind condition data; and a cooling control unit configured to control an operation of the first cooling unit in accordance with the wind condition data acquired by the wind condition data acquisition unit.
    Type: Application
    Filed: April 24, 2014
    Publication date: January 1, 2015
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Koichi OBA, Junji FUJII, Eiji WATANABE, Yasuhiro MIYAMOTO