Patents by Inventor Shunsuke Toshimitsu

Shunsuke Toshimitsu 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).

  • Publication number: 20240109179
    Abstract: A robot includes: a first structure; a second structure provided rotatably relatively to the first structure; a drive source that is arranged at the first structure and drives the second structure to rotate relatively to the first structure; a speed reducer that has an input shaft coupled to the drive source, an output shaft coupled to the second structure, and a gear unit installed between the input shaft and the output shaft, and that decelerates rotation of the drive source and transmits the decelerated rotation to the second structure; and a load application unit that applies a load to the output shaft when a rotational speed of the input shaft is equal to or lower than a predetermined value.
    Type: Application
    Filed: September 28, 2023
    Publication date: April 4, 2024
    Inventors: Junki SAKAMACHI, Shunsuke TOSHIMITSU
  • Patent number: 11633851
    Abstract: A robot system includes a robot arm driven by an electric motor and a vehicle that is movable and supports the robot arm. A control method includes (a) moving the vehicle to a work station of a first type and (b) driving the robot arm in the work station of the first type. The (a) executes a first operation mode for, in a part of the movement to the work station of the first type, moving the vehicle in a state in which electric power is not supplied to the electric motor, starting supply of the electric power to the electric motor during the movement of the vehicle in the state in which the electric power is not supplied to the electric motor, and arranging the vehicle in the work station of the first type in a state in which the electric power is supplied to the electric motor.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: April 25, 2023
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hiroyuki Kanai, Shunsuke Toshimitsu
  • Patent number: 11465280
    Abstract: A control device includes a second-control-signal generating section configured to reduce a predetermined frequency component from a first control signal for performing operation for moving a movable section of the robot to generate a second control signal and a storing section having stored therein reference information including information concerning combinations of ranges of positions of a control point of the robot and frequencies. The second-control-signal generating section determines, based on a position of the control point of the robot in the operation, with reference to the reference information, a frequency component to be reduced from the first control signal.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: October 11, 2022
    Inventors: Toshinori Hiraide, Shunsuke Toshimitsu
  • Publication number: 20220314451
    Abstract: Provided is a method for controlling a robot including a base, a robot arm coupled to the base, and a drive unit including a motor for driving the robot arm. The method includes a first step of acquiring weight information including information on a weight of an end effector installed on the robot arm and a weight of an object to be worked by the end effector; a second step of determining a frequency component to be removed from a drive signal for driving the motor based on the weight information acquired in the first step; and a third step of removing the frequency component determined in the second step from the drive signal to generate a correction drive signal.
    Type: Application
    Filed: March 30, 2022
    Publication date: October 6, 2022
    Inventor: Shunsuke TOSHIMITSU
  • Publication number: 20220314450
    Abstract: Provided is a method for controlling a robot including a base, a robot arm coupled to the base, and a drive unit including a motor for driving the robot arm. The method includes a first step of acquiring target position information on a target position when the robot arm is moved; a second step of determining a frequency component to be removed from a drive signal for driving the motor based on a posture of the robot arm at the target position of the acquired target position information; and a third step of removing the frequency component determined in the second step from the drive signal to generate a correction drive signal.
    Type: Application
    Filed: March 30, 2022
    Publication date: October 6, 2022
    Inventor: Shunsuke TOSHIMITSU
  • Publication number: 20220305651
    Abstract: A robot system includes a SCARA robot including a robot arm to which an end effector is attached and a driving section configured to drive the robot arm and a control device configured to control the driving section based on a control signal. The control device determines whether being in a first case in which a predetermined condition is satisfied or a second case in which the predetermined condition is not satisfied, in the first case, controls the driving section based on the control signal, and, in the second case, determines a frequency component to be removed from the control signal using a band stop filter, removes the frequency component from the control signal using the band stop filter to generate a corrected control signal, and controls the driving section based on the generated corrected control signal.
    Type: Application
    Filed: March 24, 2022
    Publication date: September 29, 2022
    Inventor: Shunsuke TOSHIMITSU
  • Patent number: 11130227
    Abstract: A robot control device that controls a robot including an A arm that is rotatable about an A rotation axis, a B arm that is provided so as to be rotatable around a B rotation axis with respect to the A arm and allowed to be brought into a first state overlapping with the A arm when viewed from an axial direction of the B rotation axis, a C arm that is provided so as to be rotatable around a C rotation axis which is an axial direction intersecting with an axial direction of the B rotation axis with respect to the B arm, the robot control device comprising: a processor, wherein the processor is configured to suppress interference between an object and the B arm by limiting a rotation range of the C arm in a case where the object is attached to the C arm.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: September 28, 2021
    Inventor: Shunsuke Toshimitsu
  • Patent number: 11090805
    Abstract: A robot includes a first arm that rotates around the first axis, a second arm that rotates around a second axis in a direction different from the first axis, a third arm that rotates around a third axis parallel to the second axis, a first inertia sensor that is installed at the first arm, a second (a) inertia sensor that is installed at the third arm, first to third angle sensors, a posture detection unit that detects the posture of the third arm with the second arm as a reference and derives a feedback gain, and a second drive source control unit that feeds back a second correction component, which is obtained by multiplying a value, which is obtained by subtracting the angular velocity ?A2m and the angular velocity ?A3m from the angular velocity ?A3, by the feedback gain, and controls the second drive source.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: August 17, 2021
    Inventors: Akihiro Gomi, Masaki Motoyoshi, Shunsuke Toshimitsu
  • Publication number: 20210162591
    Abstract: A robot system includes a robot arm driven by an electric motor and a vehicle that is movable and supports the robot arm. A control method includes (a) moving the vehicle to a work station of a first type and (b) driving the robot arm in the work station of the first type. The (a) executes a first operation mode for, in a part of the movement to the work station of the first type, moving the vehicle in a state in which electric power is not supplied to the electric motor, starting supply of the electric power to the electric motor during the movement of the vehicle in the state in which the electric power is not supplied to the electric motor, and arranging the vehicle in the work station of the first type in a state in which the electric power is supplied to the electric motor.
    Type: Application
    Filed: November 25, 2020
    Publication date: June 3, 2021
    Inventors: Hiroyuki KANAI, Shunsuke TOSHIMITSU
  • Patent number: 11014234
    Abstract: A control device includes: a processor wherein the processor is configured to generate one or more second control signals obtained by reducing at least one frequency component from a first control signal, output one control signal among the first control signal and the one or more second control signals, receive an instruction indicating execution of a reduction in the frequency component, generate a driving signal for driving a robot based on the control signal output from the processor and output the driving signal, output the first control signal when a first condition including non-input of the instruction indicating the execution of the reduction in the frequency component is satisfied, and output the second control signal when a second condition including input of the instruction indicating the execution of the reduction in the frequency component is satisfied.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: May 25, 2021
    Inventor: Shunsuke Toshimitsu
  • Publication number: 20200306961
    Abstract: A control device includes a second-control-signal generating section configured to reduce a predetermined frequency component from a first control signal for performing operation for moving a movable section of the robot to generate a second control signal and a storing section having stored therein reference information including information concerning combinations of ranges of positions of a control point of the robot and frequencies. The second-control-signal generating section determines, based on a position of the control point of the robot in the operation, with reference to the reference information, a frequency component to be reduced from the first control signal.
    Type: Application
    Filed: March 25, 2020
    Publication date: October 1, 2020
    Inventors: Toshinori HIRAIDE, Shunsuke TOSHIMITSU
  • Patent number: 10532457
    Abstract: A robot includes a robot arm having an nth (n is an integer equal to or more than one) arm and an (n+1)th arm, the nth arm is rotatable about an nth rotation shaft, the (n+1)th arm is provided on the nth arm rotatably about an (n+1)th rotation shaft in a shaft direction different from a shaft direction of the nth rotation shaft, and, while a distal end of the robot arm is moved from a first point to a second point, a first operation such that the nth arm and the (n+1)th arm overlap as seen from the shaft direction of the (n+1)th rotation shaft and a second operation of rotating the nth arm are performed.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: January 14, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Shunsuke Toshimitsu, Kazushige Akaha, Kazuto Yoshimura, Katsuji Igarashi
  • Publication number: 20190337153
    Abstract: A robot includes a first arm that rotates around the first axis, a second arm that rotates around a second axis in a direction different from the first axis, a third arm that rotates around a third axis parallel to the second axis, a first inertia sensor that is installed at the first arm, a second (a) inertia sensor that is installed at the third arm, first to third angle sensors, a posture detection unit that detects the posture of the third arm with the second arm as a reference and derives a feedback gain, and a second drive source control unit that feeds back a second correction component, which is obtained by multiplying a value, which is obtained by subtracting the angular velocity ?A2m and the angular velocity ?A3m from the angular velocity ?A3, by the feedback gain, and controls the second drive source.
    Type: Application
    Filed: July 16, 2019
    Publication date: November 7, 2019
    Inventors: Akihiro GOMI, Masaki MOTOYOSHI, Shunsuke TOSHIMITSU
  • Patent number: 10399222
    Abstract: A robot includes a first arm that rotates around the first axis, a second arm that rotates around a second axis in a direction different from the first axis, a third arm that rotates around a third axis parallel to the second axis, a first inertia sensor that is installed at the first arm, a second (a) inertia sensor that is installed at the third arm, first to third angle sensors, a posture detection unit that detects the posture of the third arm with the second arm as a reference and derives a feedback gain, and a second drive source control unit that feeds back a second correction component, which is obtained by multiplying a value, which is obtained by subtracting the angular velocity ?A2m and the angular velocity ?A3m from the angular velocity ?A3, by the feedback gain, and controls the second drive source.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: September 3, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Akihiro Gomi, Masaki Motoyoshi, Shunsuke Toshimitsu
  • Publication number: 20190091853
    Abstract: A robot control device that controls a robot including an A arm that is rotatable about an A rotation axis, a B arm that is provided so as to be rotatable around a B rotation axis with respect to the A arm and allowed to be brought into a first state overlapping with the A arm when viewed from an axial direction of the B rotation axis, a C arm that is provided so as to be rotatable around a C rotation axis which is an axial direction intersecting with an axial direction of the B rotation axis with respect to the B arm, the robot control device comprising: a processor, wherein the processor is configured to suppress interference between an object and the B arm by limiting a rotation range of the C arm in a case where the object is attached to the C arm.
    Type: Application
    Filed: September 21, 2018
    Publication date: March 28, 2019
    Inventor: Shunsuke TOSHIMITSU
  • Publication number: 20190084155
    Abstract: A robot comprising a base and a manipulator that is provided on the base so as to be rotatable around a first rotation axis, wherein the manipulator includes an A arm that is rotatable around an A rotation axis parallel to an installation surface of the base, and a B arm provided to be rotatable around a B rotation axis with respect to the A arm, the A arm and the B arm is brought into a first state in which the A arm and the B arm overlap, and a tip end of the manipulator is movable from a first position positioned on a side opposite to the base with respect to the installation surface of the base to a second position positioned on the side opposite to the base with respect to the A rotation axis through the first state.
    Type: Application
    Filed: September 18, 2018
    Publication date: March 21, 2019
    Inventor: Shunsuke TOSHIMITSU
  • Publication number: 20190030709
    Abstract: A robot includes a robot arm having an nth (n is an integer equal to or more than one) arm and an (n+1)th arm, the nth arm is rotatable about an nth rotation shaft, the (n+1)th arm is provided on the nth arm rotatably about an (n+1)th rotation shaft in a shaft direction different from a shaft direction of the nth rotation shaft, and, while a distal end of the robot arm is moved from a first point to a second point, a first operation such that the nth arm and the (n+1)th arm overlap as seen from the shaft direction of the (n+1)th rotation shaft and a second operation of rotating the nth arm are performed.
    Type: Application
    Filed: October 1, 2018
    Publication date: January 31, 2019
    Inventors: Shunsuke TOSHIMITSU, Kazushige AKAHA, Kazuto YOSHIMURA, Katsuji IGARASHI
  • Patent number: 10099366
    Abstract: A robot includes a robot arm having an nth (n is an integer equal to or more than one) arm and an (n+1)th arm, the nth arm is rotatable about an nth rotation shaft, the (n+1)th arm is provided on the nth arm rotatably about an (n+1)th rotation shaft in a shaft direction different from a shaft direction of the nth rotation shaft, and, while a distal end of the robot arm is moved from a first point to a second point, a first operation such that the nth arm and the (n+1)th arm overlap as seen from the shaft direction of the (n+1)th rotation shaft and a second operation of rotating the nth arm are performed.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: October 16, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Shunsuke Toshimitsu, Kazushige Akaha, Kazuto Yoshimura, Katsuji Igarashi
  • Publication number: 20180281185
    Abstract: A control device includes: a processor wherein the processor is configured to generate one or more second control signals obtained by reducing at least one frequency component from a first control signal, output one control signal among the first control signal and the one or more second control signals, receive an instruction indicating execution of a reduction in the frequency component, generate a driving signal for driving a robot based on the control signal output from the processor and output the driving signal, output the first control signal when a first condition including non-input of the instruction indicating the execution of the reduction in the frequency component is satisfied, and output the second control signal when a second condition including input of the instruction indicating the execution of the reduction in the frequency component is satisfied.
    Type: Application
    Filed: March 30, 2018
    Publication date: October 4, 2018
    Inventor: Shunsuke TOSHIMITSU
  • Patent number: 9999974
    Abstract: A robot includes a plurality of joints including a first joint and a second joint that rotates in a direction different from a rotation direction of the first joint, a plurality of arm members including a first arm member provided to be rotatable with respect to a base via the first joint, and a first angular velocity sensor provided in the first arm member or the first joint. A first inertial sensor is provided in the first arm member (or a portion that rotates together with the first arm member in the first joint). The plurality of joints are controlled on the basis of an output of the first inertial sensor.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: June 19, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Akihiro Gomi, Masaki Motoyoshi, Shunsuke Toshimitsu, Akio Niu, Atsushi Asada