Patents by Inventor Tatsuya OKUWA

Tatsuya OKUWA 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).

  • Publication number: 20210396183
    Abstract: An auxiliary device system includes a motor generator, an auxiliary device motor, a converter configured to convert electric power generated by the motor generator, an inverter configured to drive the motor generator and the auxiliary device motor, a switch configured to be switched between a motor generator control state in which the inverter controls the motor generator and an auxiliary device motor control state in which the inverter controls the auxiliary device motor, and a controller configured to control the switch. When a condition in which a motor generator drive command is generated is satisfied, the controller sets the switch to the motor generator control state. When the condition is not satisfied, the controller sets the switch to the auxiliary device motor control state.
    Type: Application
    Filed: September 27, 2019
    Publication date: December 23, 2021
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Yoshiyasu SHIBAYAMA, Tatsuya OKUWA, Yoshiaki YUDA
  • Publication number: 20210324798
    Abstract: An oil supply device of an aircraft gas turbine includes: a lubrication extraction pipe including a first end and a second end, the first end communicating with a compressor of the gas turbine, an ejection port being provided at the second end and directed to a lubricated member; an oil tank configured to store oil; an oil pipe including a first end and a second end, the first end communicating with the oil tank, the second end communicating with the lubrication extraction pipe; and an electric pump interposed on a portion of the oil pipe and configured to suck the oil from the oil tank and supply the oil to an inside of the lubrication extraction pipe.
    Type: Application
    Filed: September 3, 2019
    Publication date: October 21, 2021
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Takafumi FUJII, Tatsuya OKUWA