Patents by Inventor Tokuma NAKAMICHI

Tokuma NAKAMICHI 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).

  • POWER CONVERSION DEVICE, TEMPERATURE ESTIMATION METHOD, AND NON-TRANSITORY COMPUTER READABLE STORAGE MEDIUM WITH AN EXECUTABLE PROGRAM RECORDED THEREON
    Publication number: 20220034949
    Abstract: A power conversion device includes a power conversion circuit including a temperature sensor configured to detect a temperature at a sensor position and a switch configured to switch a connection on and off at a switch position separated from the sensor position; a loss calculation processing circuitry configured to calculate a power loss in the switch; a loss correction processing circuitry configured to correct a calculation result of the power loss on the basis of a detection result of the temperature at the sensor position; a temperature correction processing circuitry configured to correct the detection result of the temperature on the basis of the calculation result of the power loss; and a temperature estimation processing circuitry configured to estimate a temperature at the switch position on the basis of a corrected calculation result of the power loss and a corrected detection result of the temperature.
    Type: Application
    Filed: July 29, 2021
    Publication date: February 3, 2022
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Kentaro INOMATA, Noor Aamir BALOCH, Tokuma NAKAMICHI, Hengbin RUI