Patents by Inventor Hiroaki OYA

Hiroaki OYA 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).

  • Motor control apparatus
    Patent number: 11489467
    Abstract: A motor control apparatus includes control circuitry and rotation direction adjusting circuitry. The control circuitry is configured to output, in accordance with a phase sequence with respect to a motor, a drive command signal which is generated based on a motor rotation signal output from a motor rotation detector to control the motor. The rotation direction adjusting circuitry is configured to match the phase sequence with rotation direction information included in the motor rotation signal if a first trouble signal showing excessive motor current or excessive motor speed is input via an operation unit.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: November 1, 2022
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventor: Hiroaki Oya
  • MOTOR CONTROL APPARATUS
    Publication number: 20210305924
    Abstract: A motor control apparatus includes control circuitry and rotation direction adjusting circuitry. The control circuitry is configured to output, in accordance with a phase sequence with respect to a motor, a drive command signal which is generated based on a motor rotation signal output from a motor rotation detector to control the motor. The rotation direction adjusting circuitry is configured to match the phase sequence with rotation direction information included in the motor rotation signal if a first trouble signal showing excessive motor current or excessive motor speed is input via an operation unit.
    Type: Application
    Filed: March 24, 2021
    Publication date: September 30, 2021
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventor: Hiroaki OYA