Patents by Inventor Kumiko TOMA

Kumiko TOMA 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).

  • ROBOT, DRIVE MECHANISM, SPEED REDUCER, TORQUE SENSOR, AND TORQUE DETECTION METHOD
    Publication number: 20240083041
    Abstract: A robot includes a speed reducer that increases a first torque output from a motor and outputs a second torque, a torque sensor including an output part that outputs the second torque output from the speed reducer, and a sensor part that detects at least a torque applied to the output part, and a damper that is positioned in a transmission path of the second torque from the speed reducer to the torque sensor and damps transmission of the second torque.
    Type: Application
    Filed: November 21, 2023
    Publication date: March 14, 2024
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Fei ZHAO, Kumiko TOMA, Shinsuke KUCHIWANO, Eiji FUJITSU, Satoshi SUEYOSHI
  • Torque sensor, robot, and torque calculation method
    Patent number: 11898922
    Abstract: A torque sensor includes: a strain body; and an optical sensor configured to detect a deformation of the strain body. The strain body includes an outer peripheral portion having a ring shape, and an inner peripheral portion of which at least a part is disposed inside the outer peripheral portion in a radial direction. The optical sensor includes a scale fixed to one of the outer peripheral portion and the inner peripheral portion, and disposed between the outer peripheral portion and the inner peripheral portion, and a detector fixed to a remaining one of the outer peripheral portion and the inner peripheral portion, and disposed to face the scale between the outer peripheral portion and the inner peripheral portion.
    Type: Grant
    Filed: April 13, 2022
    Date of Patent: February 13, 2024
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Fei Zhao, Kumiko Toma, Takehito Soga, Kenichi Sadakane, Yasushi Yoshida
  • TORQUE SENSOR, ROBOT, AND TORQUE CALCULATION METHOD
    Publication number: 20220244117
    Abstract: A torque sensor includes: a strain body; and an optical sensor configured to detect a deformation of the strain body. The strain body includes an outer peripheral portion having a ring shape, and an inner peripheral portion of which at least a part is disposed inside the outer peripheral portion in a radial direction. The optical sensor includes a scale fixed to one of the outer peripheral portion and the inner peripheral portion, and disposed between the outer peripheral portion and the inner peripheral portion, and a detector fixed to a remaining one of the outer peripheral portion and the inner peripheral portion, and disposed to face the scale between the outer peripheral portion and the inner peripheral portion.
    Type: Application
    Filed: April 13, 2022
    Publication date: August 4, 2022
    Inventors: Fei ZHAO, Kumiko TOMA, Takehito SOGA, Kenichi SADAKANE, Yasushi YOSHIDA