Patents by Inventor Akifumi FURUICHI

Akifumi FURUICHI 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 system
    Patent number: 11389959
    Abstract: A robot system including a robot and a control device that controls the robot. The robot includes a first member, a second member that is rotationally driven around a predetermined first axis relative to the first member, and a first torque detector that detects a torque around the first axis. The control device includes an external-force upper-limit-value estimator that estimates an external-force upper limit value serving as an assumable upper limit value for an external force acting on the second member based on the torque detected by the first torque detector, and controls the robot to avoid an increase in the external force when the estimated external-force upper limit value is larger than a predetermined threshold value.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: July 19, 2022
    Assignee: FANUC CORPORATION
    Inventors: Akifumi Furuichi, Kazutaka Nakayama, Kuniyasu Matsumoto, Yasuhiro Naitou
  • ROBOT SYSTEM
    Publication number: 20200376660
    Abstract: A robot system including a robot and a control device that controls the robot. The robot includes a first member, a second member that is rotationally driven around a predetermined first axis relative to the first member, and a first torque detector that detects a torque around the first axis. The control device includes an external-force upper-limit-value estimator that estimates an external-force upper limit value serving as an assumable upper limit value for an external force acting on the second member based on the torque detected by the first torque detector, and controls the robot to avoid an increase in the external force when the estimated external-force upper limit value is larger than a predetermined threshold value.
    Type: Application
    Filed: April 23, 2020
    Publication date: December 3, 2020
    Applicant: FANUC CORPORATION
    Inventors: Akifumi FURUICHI, Kazutaka NAKAYAMA, Kuniyasu MATSUMOTO, Yasuhiro NAITOU