Patents by Inventor Takashi KOROYASU

Takashi KOROYASU 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).

  • Speed reducer with electric motor
    Patent number: 11041557
    Abstract: This speed reducer with an electric motor has: a hollow shaft; a casing fixed to the hollow shaft; a fixed part that is relatively stationary with respect to the casing; an electric motor; a speed reduction mechanism; an output part; and a torque sensor that is connected to the casing and the fixed part. The torque sensor has an elastically deformable strain body that has an annular outer ring and an annular inner ring and a plurality of strain sensors. The outer ring and the inner ring are respectively located at an end portion on the radial outside and the radial inside of the torque sensor and is connected to one of the casing and the fixed part. Each of the plurality of strain sensors is at least partially located in a radial direction between the outer ring and the inner ring.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: June 22, 2021
    Assignees: NIDEC-SHIMPO CORPORATION, NIDEC COPAL ELECTRONICS CORPORATION
    Inventors: Takashi Koroyasu, Tomoyuki Otsuka, Takuro Yonemura, Takao Ikeda
  • SPEED REDUCER WITH ELECTRIC MOTOR
    Publication number: 20200003256
    Abstract: This speed reducer with an electric motor has: a hollow shaft; a casing fixed to the hollow shaft; a fixed part that is relatively stationary with respect to the casing; an electric motor; a speed reduction mechanism; an output part; and a torque sensor that is connected to the casing and the fixed part. The torque sensor has an elastically deformable strain body that has an annular outer ring and an annular inner ring and a plurality of strain sensors. The outer ring and the inner ring are respectively located at an end portion on the radial outside and the radial inside of the torque sensor and is connected to one of the casing and the fixed part. Each of the plurality of strain sensors is at least partially located in a radial direction between the outer ring and the inner ring.
    Type: Application
    Filed: February 15, 2018
    Publication date: January 2, 2020
    Applicants: NIDEC-SHIMPO CORPORATION, NIDEC COPAL ELECTRONICS CORPORATION
    Inventors: Takashi KOROYASU, Tomoyuki OTSUKA, Takuro YONEMURA, Takao IKEDA