Patents by Inventor Takafumi KAJIYAMA

Takafumi KAJIYAMA 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).

  • Patent number: 11964396
    Abstract: A device capable of acquiring a deviation of a working position of a tool with respect to a target position of a workpiece with higher accuracy in accordance with actual work. A device for acquiring a deviation amount of a working position of a tool with respect to a target position when a work is performed on a workpiece with respect to the target position by the tool, the tool being moved by a movement machine, the device including: a camera arranged in a predetermined positional relationship with respect to the tool and configured to image the target position at a first time point when the tool performs an operation for the work; and a deviation amount acquisition section configured to acquire a deviation amount between the working position and the target position at the first time point, based on a position of the target position in image data imaged by the camera and information indicating a position of the working position in the image data.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: April 23, 2024
    Assignee: Fanuc Corporation
    Inventors: Takafumi Kajiyama, Hiroshi Nakagawa
  • Publication number: 20240066700
    Abstract: This device for simulating the operation of a robot comprises: an acquisition unit 341 that acquires the position, relative to a robot 100 having a shaft that can move in a rotational or linear manner as a joint, of a mounting article of the robot 100, the mounting article being mounted on a link that is connected to the joint, and also acquires a constraint for at least one of the speed, acceleration, and acting force generated in the mounting article when the robot 100 operates; a calculation unit 342 that calculates at least one of the speed, acceleration, and acting force anticipated to be generated in the mounting article in accordance with the position of the mounting article relative to the robot 100 when the robot 100 executes an operation; and a comparison unit 342 that compares the constraint and at least one of the speed, acceleration, and acting force calculated by the calculation unit 342.
    Type: Application
    Filed: January 4, 2022
    Publication date: February 29, 2024
    Inventors: Ryoue TOUMATSU, Takafumi KAJIYAMA
  • Patent number: 10940585
    Abstract: A vibration suppression device acquires a teaching position, computes a speed plan based on the acquired teaching position and a first acceleration/deceleration parameter, computes data related to deflection occurring during an acceleration/deceleration operation of a robot based on the teaching position and the speed plan, and acquires data indicating a posture at the teaching position. Further, a machine learning unit of the vibration suppression device estimates an acceleration/deceleration parameter with respect to the data related to the deflection and the data related to the posture using the data related to the deflection and the data related to the posture as input data.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: March 9, 2021
    Assignee: FANUC CORPORATION
    Inventors: Hiroshi Nakagawa, Takafumi Kajiyama
  • Publication number: 20200406464
    Abstract: A device capable of acquiring a deviation of a working position of a tool with respect to a target position of a workpiece with higher accuracy in accordance with actual work. A device for acquiring a deviation amount of a working position of a tool with respect to a target position when a work is performed on a workpiece with respect to the target position by the tool, the tool being moved by a movement machine, the device including: a camera arranged in a predetermined positional relationship with respect to the tool and configured to image the target position at a first time point when the tool performs an operation for the work; and a deviation amount acquisition section configured to acquire a deviation amount between the working position and the target position at the first time point, based on a position of the target position in image data imaged by the camera and information indicating a position of the working position in the image data.
    Type: Application
    Filed: June 19, 2020
    Publication date: December 31, 2020
    Applicant: Fanuc Corporation
    Inventors: Takafumi Kajiyama, Hiroshi Nakagawa
  • Patent number: 10744654
    Abstract: A gripper control device includes a controller, the controller is configured to conduct: a grasp quality evaluation process to obtain a grasp quality contribution degree for each of a plurality of contact positions at which fingers that support the object are in contact with the object; a finger-to-be-moved determination process configured to determine, as a finger-to-be-moved, the finger corresponding to one of the contact positions at which the grasp quality contribution degree is low; and a finger movement control process configured to send a control command to a finger driving apparatus, wherein the grasp quality contribution degree for each of the multiple contact positions is defined using at least one of the following elements: relative positions of the plurality of contact positions related to the object; and friction coefficients between the object and the fingers at the plurality of contact positions.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: August 18, 2020
    Assignee: FANUC CORPORATION
    Inventors: Weijia Li, Wenjie Chen, Hiroshi Nakagawa, Takafumi Kajiyama
  • Patent number: 10317854
    Abstract: A machine learning device that learns a control command for a machine by machine learning, including a machine learning unit that performs the machine learning to output the control command; a simulator that performs a simulation of a work operation of the machine based on the control command; and a first determination unit that determines the control command based on an execution result of the simulation by the simulator.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: June 11, 2019
    Assignee: FANUC CORPORATION
    Inventors: Hiroshi Nakagawa, Takafumi Kajiyama
  • Publication number: 20190160664
    Abstract: A vibration suppression device acquires a teaching position, computes a speed plan based on the acquired teaching position and a first acceleration/deceleration parameter, computes data related to deflection occurring during an acceleration/deceleration operation of a robot based on the teaching position and the speed plan, and acquires data indicating a posture at the teaching position. Further, a machine learning unit of the vibration suppression device estimates an acceleration/deceleration parameter with respect to the data related to the deflection and the data related to the posture using the data related to the deflection and the data related to the posture as input data.
    Type: Application
    Filed: November 19, 2018
    Publication date: May 30, 2019
    Inventors: Hiroshi NAKAGAWA, Takafumi KAJIYAMA
  • Publication number: 20190001508
    Abstract: A gripper control device includes a controller, the controller is configured to conduct: a grasp quality evaluation process to obtain a grasp quality contribution degree for each of a plurality of contact positions at which fingers that support the object are in contact with the object; a finger-to-be-moved determination process configured to determine, as a finger-to-be-moved, the finger corresponding to one of the contact positions at which the grasp quality contribution degree is low; and a finger movement control process configured to send a control command to a finger driving apparatus, wherein the grasp quality contribution degree for each of the multiple contact positions is defined using at least one of the following elements: relative positions of the plurality of contact positions related to the object; and friction coefficients between the object and the fingers at the plurality of contact positions.
    Type: Application
    Filed: June 27, 2018
    Publication date: January 3, 2019
    Inventors: Weijia LI, Wenjie CHEN, Hiroshi NAKAGAWA, Takafumi KAJIYAMA
  • Publication number: 20170308052
    Abstract: A cell controller capable of optimizing the operation of a production system having a plurality of industrial machines operated by an operation program. The cell controller includes: a system operational information analyzer configured to analyze time-series operational information received from the industrial machines via a network, so as to find a part in the system which generates an adverse effect on a cycle time of the entire production system; a state quantity analyzer configured to analyze a state quantity of the industrial machines so as to calculate a degree of margin of motion of each industrial machine; a program modifier configured to automatically modify a velocity or acceleration in the operation program based on the degree of margin; and a simulator configured to execute an operational simulation of the production system in order to confirm a modification result of the operation program.
    Type: Application
    Filed: April 24, 2017
    Publication date: October 26, 2017
    Inventor: Takafumi KAJIYAMA
  • Publication number: 20170285584
    Abstract: A machine learning device that learns a control command for a machine by machine learning, including a machine learning unit that performs the machine learning to output the control command; a simulator that performs a simulation of a work operation of the machine based on the control command; and a first determination unit that determines the control command based on an execution result of the simulation by the simulator.
    Type: Application
    Filed: March 29, 2017
    Publication date: October 5, 2017
    Inventors: Hiroshi NAKAGAWA, Takafumi KAJIYAMA