Patents by Inventor Atsuro TANDAI

Atsuro TANDAI 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).

  • Command generation device and command generation method to control motor
    Patent number: 11914343
    Abstract: A command generation device to control a motor includes command input circuitry configured to receive a first command, first intermediate data calculation circuitry configured to calculate first intermediate data based on the first command, delay time setting circuitry configured to determine a delay time based on the first command, second intermediate data calculation circuitry configured to calculate second intermediate data by smoothing the first intermediate data based on the delay time, and command output circuitry configured to calculate, based on the second intermediate data, a second command according to which the motor is controlled. A first time period during which positioning the motor based on the first command is completed when the first intermediate data is smoothed is longer by the delay time than a second time period during which positioning the motor based on the first command is completed when the first intermediate data is not smoothed.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: February 27, 2024
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Kenichi Hirose, Yasuhiro Suzuki, Atsuro Tandai, Kenshiro Yokoi
  • Machine control system, machine controller, and vibration suppression command generation method
    Patent number: 11340578
    Abstract: A machine control system includes a first movable element configured to be driven by a first motor, a second movable element configured to be driven by a second motor which is connected to the first motor so that a jerk to be generated by the first motor is applied to the second movable element, and control circuitry configured to generate a first control command to control the first motor and to generate a second control command to control the second motor according to the jerk.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: May 24, 2022
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Kenichi Hirose, Atsuro Tandai, Yasuhiro Suzuki
  • COMMAND GENERATION DEVICE AND COMMAND GENERATION METHOD TO CONTROL MOTOR
    Publication number: 20210405614
    Abstract: A command generation device to control a motor includes command input circuitry configured to receive a first command, first intermediate data calculation circuitry configured to calculate first intermediate data based on the first command, delay time setting circuitry configured to determine a delay time based on the first command, second intermediate data calculation circuitry configured to calculate second intermediate data by smoothing the first intermediate data based on the delay time, and command output circuitry configured to calculate, based on the second intermediate data, a second command according to which the motor is controlled. A first time period during which positioning the motor based on the first command is completed when the first intermediate data is smoothed is longer by the delay time than a second time period during which positioning the motor based on the first command is completed when the first intermediate data is not smoothed.
    Type: Application
    Filed: June 3, 2021
    Publication date: December 30, 2021
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Kenichi HIROSE, Yasuhiro SUZUKI, Atsuro TANDAI, Kenshiro YOKOI
  • MACHINE CONTROL SYSTEM, MACHINE CONTROLLER, AND VIBRATION SUPPRESSION COMMAND GENERATION METHOD
    Publication number: 20200333762
    Abstract: A machine control system includes a first movable element configured to be driven by a first motor, a second movable element configured to be driven by a second motor which is connected to the first motor so that a jerk to be generated by the first motor is applied to the second movable element, and control circuitry configured to generate a first control command to control the first motor and to generate a second control command to control the second motor according to the jerk.
    Type: Application
    Filed: February 19, 2020
    Publication date: October 22, 2020
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Kenichi HIROSE, Atsuro TANDAI, Yasuhiro SUZUKI