Patents by Inventor Tetsuro Izumi
Tetsuro Izumi 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).
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Publication number: 20150100147Abstract: After a forward end of a workpiece is inserted into a through-hole and fitting is started, a follow operation of moving the workpiece to follow the shape of the through-hole is performed during the movement of the workpiece in a fitting direction. At this time, the workpiece is fitted into the through-hole while a control point of a robot is changed in a direction opposite to the fitting direction according to the amount of movement of the workpiece in the fitting direction.Type: ApplicationFiled: December 16, 2014Publication date: April 9, 2015Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Tetsuro IZUMI, Yukio HASHIGUCHI, Takuya FUKUDA, Ryoichi NAGAI
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Publication number: 20140358282Abstract: A robot system includes a robot, an operation control device, an impulse calculation device, and a first detection device. The robot includes an end effector and a force sensor. The force sensor is configured to measure a force applied to the end effector. The operation control device is configured to control the robot to perform predetermined work. The impulse calculation device is configured to calculate an impulse applied to the end effector based on a measurement value measured by the force sensor while the robot is performing the predetermined work. The first detection device is configured to generate detection information when the impulse exceeds a threshold.Type: ApplicationFiled: May 29, 2014Publication date: December 4, 2014Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Tetsuro IZUMI, Ryoichi NAGAI, Yukio HASHIGUCHI
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Patent number: 8880216Abstract: A picking system includes a conveyer, a robot, and a control device. The conveyer conveys workpieces. The robot includes a plurality of holding parts and a supporting part. The holding parts hold the workpieces. The supporting part is rotatably provided against an arm to support the plurality of holding parts. Then, the control device instructs the robot to rotate the supporting part by a predetermined amount in such a manner that the direction of the workpiece becomes a predetermined direction for each the workpiece held by the holding parts and then to place the workpiece on a predetermined place.Type: GrantFiled: December 27, 2011Date of Patent: November 4, 2014Assignee: Kabushiki Kaisha Yaskawa DenkiInventors: Tetsuro Izumi, Kenichi Koyanagi, Kenji Matsukuma, Yukio Hashiguchi
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Patent number: 8880217Abstract: A picking system includes a conveyer, a robot, a main camera, and a control device. The conveyer conveys workpieces. The robot performs a holding operation and a moving operation on the workpieces. The main camera captures the transport path of the conveyer. The control device detects the workpiece on the basis of the image captured by the main camera and instructs the robot to perform the holding operation on the detected workpiece. Moreover, the control device instructs the robot to perform the holding operation on the overlapped workpieces when the overlapping of the workpieces is detected.Type: GrantFiled: December 27, 2011Date of Patent: November 4, 2014Assignee: Kabushiki Kaisha Yaskawa DenkiInventors: Tetsuro Izumi, Kenichi Koyanagi, Kenji Matsukuma, Yukio Hashiguchi
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Patent number: 8849455Abstract: A robot system according to embodiments includes a position command generating unit that corrects a position command of a motor based on a rotation angle of the motor, which drives a link of a robot via a speed reducer, and a rotation angle of an output shaft of the speed reducer.Type: GrantFiled: December 21, 2011Date of Patent: September 30, 2014Assignee: Kabushiki Kaisha Yaskawa DenkiInventors: Tetsuro Izumi, Tomohiro Matsuo
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Publication number: 20140277715Abstract: A robot system includes a plurality of robots, a control device, a common work table, and a calibration device. The control device is configured to control the plurality of robots. On the common work table, the plurality of robots are configured to work. Based on a position of a first robot having a calibrated coordinate relative to a position of a second robot among the plurality of robots, the calibration device is configured to calibrate a coordinate of the second robot.Type: ApplicationFiled: March 10, 2014Publication date: September 18, 2014Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Ryoichi NAGAI, Tamio NAKAMURA, Dai KOUNO, Tetsuro IZUMI
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Publication number: 20140277729Abstract: A robot system includes a robot and a control apparatus. The robot includes a sensor to constantly detect the robot. The control apparatus includes a control device and a first storage device. The control device controls the robot. The first storage device stores a plurality of operation modes of the robot and standard data associated with at least one operation mode among the operation modes. When the robot has performed an operation corresponding to the operation mode associated with the standard data, the control device compares the standard data with a result of detection by the sensor, and controls a display device to display a result of comparison.Type: ApplicationFiled: February 27, 2014Publication date: September 18, 2014Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Tamio NAKAMURA, Dai KOUNO, Tetsuro IZUMI, Ryoichi NAGAI
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Publication number: 20140277722Abstract: A robot system includes a robot, a tool, a control device, a work table, a calibration jig, a detector, and a calibrator. The tool is mounted to a distal end of the robot and includes a first plane and a second plane orthogonal to each other. The control device controls the robot. On the work table, the robot works. The calibration jig is fixed to the work table. The detector detects a reference position determined by pressing the first plane and the second plane of the tool against at least one of the jig and the work table. Based on the reference position, the calibrator calibrates coordinates of the robot to be used by the control device.Type: ApplicationFiled: February 28, 2014Publication date: September 18, 2014Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Ryoichi NAGAI, Tamio NAKAMURA, Dai KOUNO, Tetsuro IZUMI
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Publication number: 20140277720Abstract: A robot system includes a robot. A fitting member holder is mounted to a distal end of the robot to hold a fitting member. A receiver member receives the fitting member. A position determination member is disposed at a fixed position relative to the receiver member. A robot controller controls the robot. A position identifying device brings the robot, the fitting member, or the fitting member holder into contact with the position determination member with the fitting member holder holding the fitting member. A position identifying device identifies a fitting position based on a position of the contact. A fitting control device controls the robot to fit the fitting member into the receiver member at the fitting position.Type: ApplicationFiled: February 28, 2014Publication date: September 18, 2014Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Tetsuro IZUMI, Tamio NAKAMURA, Dai KOUNO, Ryoichi NAGAI
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Publication number: 20140277733Abstract: A robot system includes robot, an image capture device, a plurality of illumination devices, and a control device. The robot is configured to perform a predetermined work on a to-be-processed material. The image capture device is configured to capture an image of the to-be-processed material and has a dynamic range. The plurality of illumination devices are configured to illuminate the to-be-processed material. The control device is configured to control at least one illumination device among the plurality of illumination devices to keep an amount of light received by the image capture device within the dynamic range of the image capture device.Type: ApplicationFiled: February 27, 2014Publication date: September 18, 2014Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Dai KOUNO, Tamio NAKAMURA, Tetsuro IZUMI, Ryoichi NAGAI
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Publication number: 20140277714Abstract: A robot system includes a plurality of robots, a plurality of cells, a detection device, and a changer device. Each of the plurality of robots is configured to operate based on an operation command. The plurality of cells respectively accommodate the plurality of robots and are connectable to each other. The detection device is configured to detect that the plurality of cells are connected to each other. When the detection device detects that the plurality of cells are connected to each other, the changer device is configured to change at least one operation command among operation commands for the plurality of robots respectively accommodated in the connected cells.Type: ApplicationFiled: February 27, 2014Publication date: September 18, 2014Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Tetsuro IZUMI, Tamio NAKAMURA, Dai KOUNO, Ryoichi NAGAI
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Publication number: 20140277713Abstract: A robot system includes a first cell and a second cell. The first cell includes a first robot, a first controller, and a first casing. The first robot performs work on a to-be-worked material. The first controller controls the first robot. The first casing accommodates the first robot and the first controller. The second cell includes a second robot, a second controller, and a second casing. The second robot performs work on a to-be-worked material. The second controller controls the second robot. The second casing accommodates the second robot and the second controller. When the first casing and the second casing are connected to each other, the first controller and the second controller respectively control the first robot and the second robot to work in a common operation area, where a first movable area and a second movable area overlap.Type: ApplicationFiled: February 27, 2014Publication date: September 18, 2014Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Dai KOUNO, Tamio NAKAMURA, Tetsuro IZUMI, Ryoichi NAGAI
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Publication number: 20140188281Abstract: A robot teaching system according to an embodiment includes a robot, a sensor, a screen generator, an adjuster, and a job generator. The sensor measures measured values relating to operations of the robot. The screen generator generates a teaching operation screen that includes guidance information intended for the teacher. The adjuster adjusts parameters for generating a job based on specified values relating to the operations of the robot and input in the teaching operation screen, and the measured values of the sensor associated with the specified values, the parameters defining an operation command including corrections of the operations of the robot. The job generator generates the job in which the parameters adjusted by the adjuster are incorporated.Type: ApplicationFiled: December 25, 2013Publication date: July 3, 2014Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Ryoichi NAGAI, Yukiko HASHIGUCHI, Tetsuro IZUMI
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Publication number: 20140188323Abstract: A mobile robot includes a truck capable of traveling by servo control, a robot arm mounted on the truck, and a control portion servo-controlling the traveling of the truck. The control portion is configured to set a servo gain of the servo control for the truck to a robot arm operation gain during the operation of the robot arm.Type: ApplicationFiled: March 10, 2014Publication date: July 3, 2014Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Dai KOUNO, Tetsuro IZUMI, Tamio NAKAMURA, Takashi NISHIMURA
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Publication number: 20130345848Abstract: In this robot system, a control portion includes a workpiece supporting operation command portion, a workpiece positioning operation command portion causing a second robot arm to move a workpiece toward a workpiece fitted portion while causing an end effector of the second robot arm to support the workpiece, and a fitting operation command portion causing a first robot arm to fit the workpiece into the workpiece fitted portion.Type: ApplicationFiled: February 7, 2013Publication date: December 26, 2013Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Tetsuro IZUMI, Yukio HASHIGUCHI, Takuya FUKUDA, Ryoichi NAGAI
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Patent number: 8606400Abstract: A robot system according to embodiments includes a conveying device, a plurality of robots, an image capturing device, a workpiece detecting device, and a control device. The control device includes an operation instruction unit and an allocating unit. The operation instruction unit generates an operation instruction for performing a holding operation on workpieces on the basis of the detection result of the workpiece detecting device and transmits the operation instruction to the robots. The allocating unit determines which of the plurality of robots to which the operation instruction unit transmits the operation instruction on the basis of conveying situations of the workpieces obtained from the detection result of the workpiece detecting device.Type: GrantFiled: January 20, 2012Date of Patent: December 10, 2013Assignee: Kabushiki Kaisha Yaskawa DenkiInventors: Tetsuro Izumi, Kenichi Koyanagi, Kenji Matsukuma, Yukio Hashiguchi
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Patent number: 8548665Abstract: A movable body system includes a movable body to which an image pickup apparatus is attached; an image analyzer that performs image matching between the image captured by the image pickup apparatus and an image, which is previously captured on the travel path of the movable body; a wall-surface detector that detects directions of the movable body with respect to wall surfaces, which are arranged along the travel path, and distances between the wall surfaces and the movable body; and a traveling-direction calculator that detects a shift of the movable body with respect to the travel path from an output of the image analyzer or the wall-surface detector, and calculates a traveling direction to cause the movable body to travel on the travel path.Type: GrantFiled: March 16, 2011Date of Patent: October 1, 2013Assignee: Kabushiki Kaisha Yaskawa DenkiInventors: Tetsuro Izumi, Dai Kouno
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Publication number: 20120323363Abstract: A robot system according to embodiments includes a conveying device, a plurality of robots, an image capturing device, a workpiece detecting device, and a control device. The control device includes an operation instruction unit and an allocating unit. The operation instruction unit generates an operation instruction for performing a holding operation on workpieces on the basis of the detection result of the workpiece detecting device and transmits the operation instruction to the robots. The allocating unit determines which of the plurality of robots to which the operation instruction unit transmits the operation instruction on the basis of conveying situations of the workpieces obtained from the detection result of the workpiece detecting device.Type: ApplicationFiled: January 20, 2012Publication date: December 20, 2012Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Tetsuro Izumi, Kenichi Koyanagi, Kenji Matsukuma, Yukio Hashiguchi
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Publication number: 20120323357Abstract: A picking system includes a conveyer, a robot, and a control device. The conveyer conveys workpieces. The robot includes a plurality of holding parts and a supporting part. The holding parts hold the workpieces. The supporting part is rotatably provided against an arm to support the plurality of holding parts. Then, the control device instructs the robot to rotate the supporting part by a predetermined amount in such a manner that the direction of the workpiece becomes a predetermined direction for each the workpiece held by the holding parts and then to place the workpiece on a predetermined place.Type: ApplicationFiled: December 27, 2011Publication date: December 20, 2012Applicant: Kabushiki Kaisha Yaskawa DenkiInventors: Tetsuro IZUMI, Kenichi KOYANAGI, Kenji MATSUKUMA, Yukio HASHIGUCHI
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Publication number: 20120323358Abstract: A picking system includes a conveyer, a robot, a main camera, and a control device. The conveyer conveys workpieces. The robot performs a holding operation and a moving operation on the workpieces. The main camera captures the transport path of the conveyer. The control device detects the workpiece on the basis of the image captured by the main camera and instructs the robot to perform the holding operation on the detected workpiece. Moreover, the control device instructs the robot to perform the holding operation on the overlapped workpieces when the overlapping of the workpieces is detected.Type: ApplicationFiled: December 27, 2011Publication date: December 20, 2012Applicant: Kabushiki Kaisha Yaskawa DenkiInventors: Tetsuro IZUMI, Kenichi KOYANAGI, Kenji MATSUKUMA, Yukio HASHIGUCHI