Patents by Inventor Tetsuyuki HASEGAWA

Tetsuyuki HASEGAWA 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: 10308184
    Abstract: A door mirror control device supplies drive voltages to respective lock detection sections in left and right door mirrors. If motors are driven in accordance with the drive voltages, the door mirrors are operated from one of a retracted position or a deployed position toward the other of the retracted position or the deployed position, and the motors stop after the door mirrors reach either the retracted position or the deployed position. Operating time determination sections determine operating times of the door mirrors from changes in values of operating currents. Voltage setting sections change settings for the drive voltages supplied to lock detection circuits of the door mirrors based on the operating times of the left and right door mirrors such that the operating times of the left and right door mirrors match each other.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: June 4, 2019
    Assignee: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO
    Inventors: Tetsuyuki Hasegawa, Shinichi Miyazaki
  • Publication number: 20180162278
    Abstract: A door mirror control device supplies drive voltages to respective lock detection sections in left and right door mirrors. If motors are driven in accordance with the drive voltages, the door mirrors are operated from one of a retracted position or a deployed position toward the other of the retracted position or the deployed position, and the motors stop after the door mirrors reach either the retracted position or the deployed position. Operating time determination sections determine operating times of the door mirrors from changes in values of operating currents. Voltage setting sections change settings for the drive voltages supplied to lock detection circuits of the door mirrors based on the operating times of the left and right door mirrors such that the operating times of the left and right door mirrors match each other.
    Type: Application
    Filed: May 31, 2016
    Publication date: June 14, 2018
    Inventors: Tetsuyuki HASEGAWA, Shinichi MIYAZAKI