Patents by Inventor Taishi HIROMI

Taishi HIROMI 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).

  • Patent number: 9941823
    Abstract: This disclosure discloses a motor control device configured to control a motor. The motor control device includes an inverter part, a gate driving circuit, a PWM generation circuit, at least one gate buffer, and a control part. The inverter part is configured to convert direct current into alternate current in response to a motor drive command. The gate driving circuit is configured to drive the inverter part. The PWM generation circuit is configured to generate a PWM signal applied to the gate driving circuit. The at least one gate buffer is disposed between the gate driving circuit and the PWM generation circuit. The control part is configured to apply a test signal to the gate buffer to determine abnormality of the gate buffer.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: April 10, 2018
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Junya Hisamatsu, Taishi Hiromi, Yusuke Tanaka
  • Publication number: 20160241174
    Abstract: This disclosure discloses a motor control device configured to control a motor. The motor control device includes an inverter part, a gate driving circuit, a PWM generation circuit, at least one gate buffer, and a control part. The inverter part is configured to convert direct current into alternate current in response to a motor drive command. The gate driving circuit is configured to drive the inverter part. The PWM generation circuit is configured to generate a PWM signal applied to the gate driving circuit. The at least one gate buffer is disposed between the gate driving circuit and the PWM generation circuit. The control part is configured to apply a test signal to the gate buffer to determine abnormality of the gate buffer.
    Type: Application
    Filed: April 26, 2016
    Publication date: August 18, 2016
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Junya HISAMATSU, Taishi HIROMI, Yusuke TANAKA