Patents by Inventor Masato Yokota
Masato Yokota 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: 11969905Abstract: A control method for a robot performing a task on a workpiece conveyed by a belt conveyor having a moving belt is provided. The control method includes: causing a first image pickup device to detect an inclination between a first direction serving as a reference for traveling of the belt and a direction in which the belt is traveling, and a first distance that is a distance between the belt and a first reference position in a second direction orthogonal to the first direction at the first reference position; calculating a position of the workpiece as of when the workpiece is moved by the belt conveyor from a first position to a second position away from the first position by a second distance in the first direction, based on the inclination and the first distance detected by the first image pickup unit; and causing the robot to perform a task on the workpiece at the second position that is calculated.Type: GrantFiled: September 23, 2021Date of Patent: April 30, 2024Assignee: SEIKO EPSON CORPORATIONInventor: Masato Yokota
-
Publication number: 20220105641Abstract: A belt conveyor calibration method includes transporting a marker by a belt of a belt conveyor, imaging the marker by a first camera, detecting the marker passing through one section of a plurality of sections formed by division of a first imaging area of the first camera from a captured image of the first camera, moving a second camera by a robot and tracking and imaging the detected marker by the second camera, and calculating and storing a correction value as a difference between a position of the marker estimated from a transportation amount of the belt and a position of the marker detected from an image of the marker tracked and imaged.Type: ApplicationFiled: October 6, 2021Publication date: April 7, 2022Inventor: Masato YOKOTA
-
Publication number: 20220088790Abstract: A control method for a robot performing a task on a workpiece conveyed by a belt conveyor having a moving belt is provided. The control method includes: causing a first image pickup device to detect an inclination between a first direction serving as a reference for traveling of the belt and a direction in which the belt is traveling, and a first distance that is a distance between the belt and a first reference position in a second direction orthogonal to the first direction at the first reference position; calculating a position of the workpiece as of when the workpiece is moved by the belt conveyor from a first position to a second position away from the first position by a second distance in the first direction, based on the inclination and the first distance detected by the first image pickup unit; and causing the robot to perform a task on the workpiece at the second position that is calculated.Type: ApplicationFiled: September 23, 2021Publication date: March 24, 2022Inventor: Masato YOKOTA
-
Patent number: 10857674Abstract: A robot system and a robot are capable of easily defining a position of a target object with respect to a robot. The robot system includes a first robot, a first cell which is provided with the first robot and is capable of moving, and a positioning unit which is provided in an inner portion of the first cell and positions a target object.Type: GrantFiled: April 14, 2016Date of Patent: December 8, 2020Inventors: Masato Yokota, Shiguma Iijima
-
Patent number: 10836036Abstract: A control device includes: a processor that is configured to execute computer-executable instructions so as to control a robot, wherein the processor is configured to: generate a second control signal by reducing at least one of frequency components obtained based on an output of a first detector which is installed in a portion vibrated by a robot and detects vibration from a first control signal for driving the robot, and wherein the portion is different from the robot and an end effector installed in the robot.Type: GrantFiled: March 23, 2018Date of Patent: November 17, 2020Assignee: Seiko Epson CorporationInventors: Masato Yokota, Masayuki Iiyama
-
Patent number: 10220508Abstract: A robot includes a curved arm including a first member, a second member, and a coupling member and bending in a longitudinal direction, the first member couples to a distal end of the coupling member in the longitudinal direction, and the second member couples to a base end of the coupling member in the longitudinal direction.Type: GrantFiled: September 29, 2015Date of Patent: March 5, 2019Assignee: Seiko Epson CorporationInventors: Masato Yokota, Jun Sakurada, Akio Niu
-
Publication number: 20180281182Abstract: A control device includes: a processor that is configured to execute computer-executable instructions so as to control a robot, wherein the processor is configured to: generate a second control signal by reducing at least one of frequency components obtained based on an output of a first detector which is installed in a portion vibrated by a robot and detects vibration from a first control signal for driving the robot, and wherein the portion is different from the robot and an end effector installed in the robot.Type: ApplicationFiled: March 23, 2018Publication date: October 4, 2018Inventors: Masato YOKOTA, Masayuki IIYAMA
-
Publication number: 20180200892Abstract: A robot includes a robot arm having at least one arm, from which an end effector is detachable, a force detection unit provided between the end effector and the arm, and an energizing member that energizes the end effector toward the force detection unit side. It is preferable that the energizing member is an elastic member having elasticity. Further, a connecting part that couples the robot arm and the end effector is provided, and it is preferable that the force detection unit is provided between the end effector and the connecting part.Type: ApplicationFiled: January 5, 2018Publication date: July 19, 2018Inventors: Yuji SHIMADA, Naoki UMETSU, Tsuguya KOJIMA, Masato YOKOTA
-
Publication number: 20180194009Abstract: A robot control device includes a processor that is configured to execute computer-executable instructions so as to control a robot provided with a manipulator having a plurality of joints, wherein the processor is configured to: display an area, in which a second predetermined position of the robot can move so that a first predetermined position of the robot does not pass through a singular point, in a display.Type: ApplicationFiled: January 5, 2018Publication date: July 12, 2018Inventors: Tsuguya KOJIMA, Masato YOKOTA, Toshiyuki ISHIGAKI, Naoki UMETSU, Yoshito MIYAMOTO
-
Publication number: 20180154522Abstract: A robot system and a robot are capable of easily defining a position of a target object with respect to a robot. The robot system includes a first robot, a first cell which is provided with the first robot and is capable of moving, and a positioning unit which is provided in an inner portion of the first cell and positions a target object.Type: ApplicationFiled: April 14, 2016Publication date: June 7, 2018Applicant: Seiko Epson CorporationInventors: Masato YOKOTA, Shiguma IIJIMA
-
Patent number: 9975257Abstract: A ceiling mounted robot includes a first arm portion, and a second motor that is provided in the first arm portion. The first arm portion has a first heat dissipation path limiting portion, and a first heat dissipation portion that is in contact with the first heat dissipation path limiting portion and has thermal conductivity higher than that of the first heat dissipation path limiting portion. The first heat dissipation portion is in contact with the second motor.Type: GrantFiled: April 16, 2015Date of Patent: May 22, 2018Assignee: Seiko Epson CorporationInventors: Seiji Hahakura, Masato Yokota
-
Publication number: 20180117767Abstract: A robot system includes a supply section configured to supply an object, a first test section group including a plurality of first test sections configured to test the supplied object, a second test section group including a plurality of second test sections configured to test the supplied object, a collecting section configured to collect the tested object, and a robot including a robot arm and configured to hold, convey, and release the object. The robot is capable of collectively conveying a plurality of the objects. A total of conveyance times for the conveyance of the object by the robot from the supply to the collection of the object is shorter than a total of processing times for the holding and the release of the object by the robot.Type: ApplicationFiled: October 31, 2017Publication date: May 3, 2018Inventors: Masato YOKOTA, Tomohiro KUMAGAI, Noriaki KOTANI
-
Patent number: 9884422Abstract: A robot includes a base, a first arm rotatably provided on the base via a first connecting section, a second arm rotatably provided on the first arm via a second connecting section, and a movable shaft section provided in the second arm and movable with respect to the second arm. When a movable range of the movable shaft section is represented as S and the height between a distal end of the movable shaft section on the opposite side of the first arm at the time when the movable shaft section moves to the first arm side most with respect to the second arm and a first connection surface, which is a connection surface of the base and the first connecting section, is represented as H1, a relation H1?3S is satisfied.Type: GrantFiled: April 24, 2015Date of Patent: February 6, 2018Assignee: Seiko Epson CorporationInventors: Seiji Hahakura, Masato Yokota
-
Patent number: 9770824Abstract: A ceiling mounted robot includes a first member, a first arm portion that is rotatably provided on the first member via a first joint portion, a second arm portion that is rotatably provided on the first arm portion via a second joint portion, a wiring portion that is inserted into the first arm portion and the second arm portion, and a connector portion that is connected to the wiring portion.Type: GrantFiled: April 21, 2015Date of Patent: September 26, 2017Assignee: Seiko Epson CorporationInventors: Seiji Hahakura, Masato Yokota
-
Publication number: 20170182665Abstract: A robot moves a first target object in a second direction different from a first direction based on an image captured by an imaging device from a time when the imaging device images the first target object at a first position until a time when the first target object reaches a second position which is in the same first direction as the first position.Type: ApplicationFiled: December 27, 2016Publication date: June 29, 2017Inventors: Masayuki OKUYAMA, Makoto KOBAYASHI, Masato YOKOTA
-
Publication number: 20160089778Abstract: A robot includes a curved arm including a first member, a second member, and a coupling member and bending in a longitudinal direction, the first member couples to a distal end of the coupling member in the longitudinal direction, and the second member couples to a base end of the coupling member in the longitudinal direction.Type: ApplicationFiled: September 29, 2015Publication date: March 31, 2016Inventors: Masato YOKOTA, Jun SAKURADA, Akio NIU
-
Publication number: 20150321361Abstract: A ceiling mounted robot includes a first member; a first arm portion that is turnably provided on the first member via a first joint portion; a second arm portion that is turnably provided on the first arm portion via a second joint portion; a hollow pipe that has a first end portion fixed to the first arm portion, and a second end portion inserted into the second arm portion; a first fixing portion that fixes a wiring inserted into the hollow pipe to the second end portion of the pipe portion; and a second fixing portion that fixes the wiring to the second arm portion.Type: ApplicationFiled: April 23, 2015Publication date: November 12, 2015Inventors: Seiji HAHAKURA, Masato YOKOTA
-
Publication number: 20150321345Abstract: A robot includes a base, a first arm rotatably provided on the base via a first connecting section, a second arm rotatably provided on the first arm via a second connecting section, and a movable shaft section provided in the second arm and movable with respect to the second arm. When a movable range of the movable shaft section is represented as S and the height between a distal end of the movable shaft section on the opposite side of the first arm at the time when the movable shaft section moves to the first arm side most with respect to the second arm and a first connection surface, which is a connection surface of the base and the first connecting section, is represented as H1, a relation H1?3S is satisfied.Type: ApplicationFiled: April 24, 2015Publication date: November 12, 2015Inventors: Seiji HAHAKURA, Masato YOKOTA
-
Publication number: 20150321344Abstract: A ceiling mounted robot includes a first member; a first arm portion that is rotatably provided on the first member via a first joint portion; a second arm portion that is rotatably provided on the first arm portion via a second joint portion; a wiring portion that is inserted into the first arm portion and the second arm portion; and a connector portion that is connected to the wiring portion.Type: ApplicationFiled: April 21, 2015Publication date: November 12, 2015Inventors: Seiji HAHAKURA, Masato YOKOTA
-
Publication number: 20150327396Abstract: A ceiling mounted robot includes a first arm portion, and a second motor that is provided in the first arm portion. The first arm portion has a first heat dissipation path limiting portion, and a first heat dissipation portion that is in contact with the first heat dissipation path limiting portion and has thermal conductivity higher than that of the first heat dissipation path limiting portion. The first heat dissipation portion is in contact with the second motor.Type: ApplicationFiled: April 16, 2015Publication date: November 12, 2015Inventors: Seiji HAHAKURA, Masato YOKOTA