Patents by Inventor Koji BEKKI

Koji BEKKI 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).

  • Control device for rotary engine
    Patent number: 11530675
    Abstract: A control device prevents damage due to backward rotation of a rotary engine and prevents misjudgment of backward rotation of the rotary engine. The control device for a rotary engine includes a motor mechanically connected to the shaft of the rotary engine, a controller (a motor ECU) that performs energization control of the motor to start the rotary engine by driving the motor, and a sensor (such as a motor rotation sensor). When starting the rotary engine, the controller stops energization to the motor based on an electric signal from the sensor when the shaft of the rotary engine rotates backward a predetermined angle or more, and then the shaft of the rotary engine continues to rotate backward for a predetermined time.
    Type: Grant
    Filed: May 6, 2022
    Date of Patent: December 20, 2022
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Takaaki Takemitsu, Koji Bekki
  • CONTROL DEVICE FOR ROTARY ENGINE
    Publication number: 20220381215
    Abstract: A control device prevents damage due to backward rotation of a rotary engine and prevents misjudgment of backward rotation of the rotary engine. The control device for a rotary engine includes a motor mechanically connected to the shaft of the rotary engine, a controller (a motor ECU) that performs energization control of the motor to start the rotary engine by driving the motor, and a sensor (such as a motor rotation sensor). When starting the rotary engine, the controller stops energization to the motor based on an electric signal from the sensor when the shaft of the rotary engine rotates backward a predetermined angle or more, and then the shaft of the rotary engine continues to rotate backward for a predetermined time.
    Type: Application
    Filed: May 6, 2022
    Publication date: December 1, 2022
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Takaaki TAKEMITSU, Koji BEKKI