Patents by Inventor Tetsuro Matsudaira

Tetsuro Matsudaira 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: 20220355484
    Abstract: A controller of a robot includes: a voltage detecting portion that detects a power-source voltage input from a power source; and a determining portion that determines, on the basis of the power-source voltage detected by the voltage detecting portion, whether to perform power-outage processing that guarantees the operation, wherein the determining portion includes a first timer that starts a clock at a point in time when the detected power-source voltage becomes equal to or less than a first threshold voltage that guarantees the operation and makes a determination for performing the power-outage processing in the case in which the power-source voltage does not exceed the first threshold voltage before the time measured by the first timer achieves a prescribed time that is longer than one cycle of the power-source voltage.
    Type: Application
    Filed: January 18, 2021
    Publication date: November 10, 2022
    Inventors: Tetsuro MATSUDAIRA, Yoshikiyo TANABE
  • Patent number: 11285985
    Abstract: A stackable control device is equipped with a plurality of casters provided on a side of a bottom surface, and a support member provided on an upper surface and configured to support a control device that is stacked on a side of the upper surface. Two from among the plurality of casters sandwich the support member of a control device that is stacked on the side of the bottom surface.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: March 29, 2022
    Assignee: FANUC CORPORATION
    Inventors: Tetsuro Matsudaira, Toshihiro Fujimori, Yoshikiyo Tanabe
  • Patent number: 11254000
    Abstract: To provide a machine teaching terminal, a machine, a program, and a safety confirmation method capable of ensuring the safety of a worker without providing an additional device or the like. A machine teaching terminal communicably connected to a robot so as to be used for teaching the robot within a work area of the robot includes a touch panel display configured to accept input performed by a worker, an input detection part configured to detect input to the touch panel display, an abnormality detection part configured to detect an abnormal state on the basis of the detection by the input detection part, and an abnormal signal transmission part configured to transmit, in the case where the abnormality detection part detects the abnormal state, a signal indicating the abnormal state to the robot.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: February 22, 2022
    Assignee: Fanuc Corporation
    Inventors: Toshihiro Fujimori, Tetsuro Matsudaira
  • Patent number: 11154947
    Abstract: There is provided a laser processing system including: a robot; a laser emission section provided on the robot; an irradiation path calculation section configured to calculate an irradiation path of a laser beam emitted from the laser emission section using information on a position of the robot; a determination section configured to determine whether the irradiation path calculated passes through an allowable irradiation region that is predetermined; and a laser-output reduction section configured to reduce output of the laser beam to be emitted to the irradiation path to a second output lower than a first output for processing in accordance with a determination by the determination section that the irradiation path does not pass through the allowable irradiation region.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: October 26, 2021
    Assignee: Fanuc Corporation
    Inventors: Tetsuro Matsudaira, Masatoshi Hiramoto
  • Patent number: 11101090
    Abstract: A digital signal output device includes: an operation switch including contacts, a first terminal to which a first voltage is applied and a second terminal from which the first voltage is outputted when the contacts are closed; a voltage switching unit configured to select a second voltage from among a plurality of constant voltages; a voltage determination unit configured to determine on a designated cycle whether or not a voltage outputted from the voltage switching unit has changed from the second voltage; and a digital signal generation unit configured to, when the voltage determination unit determines that the voltage has not changed from the second voltage, generate on every cycle a digital signal indicating a first state when the first voltage is outputted from the second terminal and a digital signal indicating the second state when the first voltage is not outputted therefrom.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: August 24, 2021
    Assignee: FANUC CORPORATION
    Inventors: Minoru Enomoto, Tetsuro Matsudaira
  • Patent number: 11029358
    Abstract: A noise source monitoring apparatus includes: a first storage unit storing captured image data; a second storage unit storing observed waveform data; a processing unit calculating, for each of the switch units, the degree of correlation between occurrence of a noise and operation of the switch unit, based on the captured image data and the observed waveform data; and a display control unit causing a display unit to display information indicating the degree of correlation.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: June 8, 2021
    Assignee: FANUC CORPORATION
    Inventors: Makine Yuyama, Tetsuro Matsudaira
  • Publication number: 20210146983
    Abstract: A stackable control device is equipped with a plurality of casters provided on a side of a bottom surface, and a support member provided on an upper surface and configured to support a control device that is stacked on a side of the upper surface. Two from among the plurality of casters sandwich the support member of a control device that is stacked on the side of the bottom surface.
    Type: Application
    Filed: November 16, 2020
    Publication date: May 20, 2021
    Inventors: Tetsuro MATSUDAIRA, Toshihiro FUJIMORI, Yoshikiyo TANABE
  • Publication number: 20210146544
    Abstract: A robot control device, which causes a robot mounted on a transport vehicle to be stopped on the basis of an external force applied to the robot, is equipped with a determination unit configured to determine whether or not the transport vehicle is currently traveling, and a control unit configured to cause the robot to be stopped in the case that the transport vehicle is currently traveling, and to enable the robot to be operated in the case that the transport vehicle is not currently traveling.
    Type: Application
    Filed: November 16, 2020
    Publication date: May 20, 2021
    Inventors: Tetsuro MATSUDAIRA, Minoru ENOMOTO, Shuntaro TODA
  • Patent number: 10953538
    Abstract: A control device that outputs a command for a robot includes a machine learning device that learns a command for the robot. The machine learning device includes a state observation unit that observes a state of the robot and a state of a person present in a peripheral area of the robot, as state variables representing a current state of an environment, a determination data acquisition unit that acquires determination data representing an interference state between the robot and the person, and a learning unit that learns the state of the robot, the state of the person present in the peripheral area of the robot, and the command for the robot obtained by associating the state of the robot and the state of the person present in the peripheral area of the robot by using the state variables and the determination data.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: March 23, 2021
    Assignee: Fanuc Corporation
    Inventors: Tetsuro Matsudaira, Shuu Inoue
  • Patent number: 10816588
    Abstract: A noise source monitoring apparatus includes: an imaging unit for capturing an image of multiple switch units; an event time acquisition unit for acquiring a noise event time of a noise occurring in a control device; a switching time recognition unit for recognizing an on/off switching time of each of the multiple switch units; a correlation calculation unit for calculating, for every switch unit, the degree of correlation between occurrence of the noise and the on/off switching of the switch unit; and a display control unit for causing a display unit to display information indicating the degree of correlation for every switch unit.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: October 27, 2020
    Assignee: FANUC CORPORATION
    Inventors: Makine Yuyama, Tetsuro Matsudaira
  • Publication number: 20200303143
    Abstract: A digital signal output device includes: an operation switch including contacts, a first terminal to which a first voltage is applied and a second terminal from which the first voltage is outputted when the contacts are closed; a voltage switching unit configured to select a second voltage from among a plurality of constant voltages; a voltage determination unit configured to determine on a designated cycle whether or not a voltage outputted from the voltage switching unit has changed from the second voltage; and a digital signal generation unit configured to, when the voltage determination unit determines that the voltage has not changed from the second voltage, generate on every cycle a digital signal indicating a first state when the first voltage is outputted from the second terminal and a digital signal indicating the second state when the first voltage is not outputted therefrom.
    Type: Application
    Filed: March 11, 2020
    Publication date: September 24, 2020
    Inventors: Minoru ENOMOTO, Tetsuro MATSUDAIRA
  • Publication number: 20200223062
    Abstract: To provide a machine teaching terminal, a machine, a program, and a safety confirmation method capable of ensuring the safety of a worker without providing an additional device or the like. A machine teaching terminal communicably connected to a robot so as to be used for teaching the robot within a work area of the robot includes a touch panel display configured to accept input performed by a worker, an input detection part configured to detect input to the touch panel display, an abnormality detection part configured to detect an abnormal state on the basis of the detection by the input detection part, and an abnormal signal transmission part configured to transmit, in the case where the abnormality detection part detects the abnormal state, a signal indicating the abnormal state to the robot.
    Type: Application
    Filed: December 16, 2019
    Publication date: July 16, 2020
    Inventors: Toshihiro FUJIMORI, Tetsuro MATSUDAIRA
  • Patent number: 10702987
    Abstract: A robot system having a communication established between a robot controller and a teach pendant. The robot system includes a robot; a detecting section for detecting a sign received by the robot; a robot controller for controlling the robot; a teach pendant capable of communicating with the robot controller and inputting an operational instruction for the robot into the robot controller; and an input permission section for permitting input of the operational instruction from the teach pendant into the robot controller when the sign is detected by the detecting section.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: July 7, 2020
    Assignee: FANUC CORPORATION
    Inventors: Tetsuro Matsudaira, Syuntarou Toda
  • Publication number: 20200018785
    Abstract: A noise source monitoring apparatus includes: an imaging unit for capturing an image of multiple switch units; an event time acquisition unit for acquiring a noise event time of a noise occurring in a control device; a switching time recognition unit for recognizing an on/off switching time of each of the multiple switch units; a correlation calculation unit for calculating, for every switch unit, the degree of correlation between occurrence of the noise and the on/off switching of the switch unit; and a display control unit for causing a display unit to display information indicating the degree of correlation for every switch unit.
    Type: Application
    Filed: July 8, 2019
    Publication date: January 16, 2020
    Inventors: Makine Yuyama, Tetsuro Matsudaira
  • Publication number: 20200018793
    Abstract: A noise source monitoring apparatus includes: a first storage unit storing captured image data; a second storage unit storing observed waveform data; a processing unit calculating, for each of the switch units, the degree of correlation between occurrence of a noise and operation of the switch unit, based on the captured image data and the observed waveform data; and a display control unit causing a display unit to display information indicating the degree of correlation.
    Type: Application
    Filed: July 8, 2019
    Publication date: January 16, 2020
    Inventors: Makine YUYAMA, Tetsuro MATSUDAIRA
  • Publication number: 20200001394
    Abstract: There is provided a laser processing system including: a robot; a laser emission section provided on the robot; an irradiation path calculation section configured to calculate an irradiation path of a laser beam emitted from the laser emission section using information on a position of the robot; a determination section configured to determine whether the irradiation path calculated passes through an allowable irradiation region that is predetermined; and a laser-output reduction section configured to reduce output of the laser beam to be emitted to the irradiation path to a second output lower than a first output for processing in accordance with a determination by the determination section that the irradiation path does not pass through the allowable irradiation region.
    Type: Application
    Filed: June 19, 2019
    Publication date: January 2, 2020
    Applicant: Fanuc Corporation
    Inventors: Tetsuro Matsudaira, Masatoshi Hiramoto
  • Publication number: 20190091864
    Abstract: A robot system includes: a robot; a sensor that detects entry of a person into a peripheral region of the robot; and a control device that controls the robot and the sensor. The control device is provided with: a robot control unit that controls the robot; an operating-region prediction unit that sequentially predicts an operating region of the robot up to a predetermined time later; and a detection-region control unit that sets to enabled a detection result of the sensor in a region, of the peripheral region, that includes the operating region, which is predicted by the operating-region prediction unit, and sets to disabled the detection result of the sensor in the other region of the peripheral region. The robot control unit limits the operation of the robot when entry of a person is detected in the region where the detection result of the sensor has been set to enabled.
    Type: Application
    Filed: September 21, 2018
    Publication date: March 28, 2019
    Inventors: Tetsuro MATSUDAIRA, Shuu INOUE
  • Publication number: 20190047143
    Abstract: A control device that outputs a command for a robot includes a machine learning device that learns a command for the robot. The machine learning device includes a state observation unit that observes a state of the robot and a state of a person present in a peripheral area of the robot, as state variables representing a current state of an environment, a determination data acquisition unit that acquires determination data representing an interference state between the robot and the person, and a learning unit that learns the state of the robot, the state of the person present in the peripheral area of the robot, and the command for the robot obtained by associating the state of the robot and the state of the person present in the peripheral area of the robot by using the state variables and the determination data.
    Type: Application
    Filed: August 6, 2018
    Publication date: February 14, 2019
    Applicant: FANUC CORPORATION
    Inventors: Tetsuro Matsudaira, Shuu Inoue
  • Patent number: 10011017
    Abstract: An industrial robot system includes a first deviation calculation unit calculating a first deviation between a first force detection value and a first force estimation value, a first command output unit outputting an operation command, a stop command, a deceleration command, or a deceleration stop command to a robot when a first deviation is larger than a first threshold value, and a fourth command output unit outputting the operation command, the stop command, the deceleration command, or the deceleration stop command according to a deviation pattern when the first deviation includes a common deviation pattern.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: July 3, 2018
    Assignee: FANUC CORPORATION
    Inventors: Tetsuro Matsudaira, Shuntaro Toda
  • Publication number: 20180071913
    Abstract: A robot system having a communication established between a robot controller and a teach pendant. The robot system includes a robot; a detecting section for detecting a sign received by the robot; a robot controller for controlling the robot; a teach pendant capable of communicating with the robot controller and inputting an operational instruction for the robot into the robot controller; and an input permission section for permitting input of the operational instruction from the teach pendant into the robot controller when the sign is detected by the detecting section.
    Type: Application
    Filed: September 11, 2017
    Publication date: March 15, 2018
    Inventors: Tetsuro MATSUDAIRA, Syuntarou TODA