Patents by Inventor Yasunori Nishihara
Yasunori Nishihara 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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Patent number: 9604364Abstract: A picking apparatus includes: a three-dimensional imaging device configured to three-dimensionally-image workpieces contained in bulk in a container; a robot arm having a hand capable of gripping a workpiece; and a control device configured to control an operation of the robot arm; the control device is configured: to recognize a position and a posture of a target workpiece, based on an imaging result of the three-dimensional imaging device; to obtain an gripping position of the workpiece and an approach vector thereof, based on the recognized position and posture information; to calculate an intersection point between a straight line extending along the approach vector through the gripping position and a plane including an opening of the container; and to judge whether the workpiece can be picked or not, based on a positional relationship between the intersection point and the opening.Type: GrantFiled: May 8, 2015Date of Patent: March 28, 2017Assignee: TOSHIBA KIKAI KABUSHIKI KAISHAInventor: Yasunori Nishihara
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Patent number: 9434073Abstract: A robot apparatus (1) includes a control apparatus (3) which carries out correction with use of an estimated value of a joint torque estimation unit (53) which estimates a joint torque acting upon each of joints (20 to 25). The joint torque estimation unit (53) includes a Coulomb frictional force torque estimation unit (70), a viscous frictional torque estimation unit (71), and a transition interval arithmetic operation unit (72) which smoothens transition from the Coulomb frictional force torque estimation unit (70) to the viscous frictional force estimation unit (71) and transition from the viscous frictional force torque estimation unit (71) to the Coulomb frictional force torque estimation unit (70).Type: GrantFiled: August 1, 2013Date of Patent: September 6, 2016Assignee: TOSHIBA KIKAI KABUSHIKI KAISHAInventors: Yuta Matsumoto, Yasunori Nishihara, Jun Fujita
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Publication number: 20150321354Abstract: A picking apparatus includes: a three-dimensional imaging device configured to three-dimensionally-image workpieces contained in bulk in a container; a robot arm having a hand capable of gripping a workpiece; and a control device configured to control an operation of the robot arm; the control device is configured: to recognize a position and a posture of a target workpiece, based on an imaging result of the three-dimensional imaging device; to obtain an gripping position of the workpiece and an approach vector thereof, based on the recognized position and posture information; to calculate an intersection point between a straight line extending along the approach vector through the gripping position and a plane including an opening of the container; and to judge whether the workpiece can be picked or not, based on a positional relationship between the intersection point and the opening.Type: ApplicationFiled: May 8, 2015Publication date: November 12, 2015Inventor: Yasunori NISHIHARA
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Publication number: 20150258685Abstract: A robot apparatus (1) includes a control apparatus (3) which carries out correction with use of an estimated value of a joint torque estimation unit (53) which estimates a joint torque acting upon each of joints (20 to 25). The joint torque estimation unit (53) includes a Coulomb frictional force torque estimation unit (70), a viscous frictional torque estimation unit (71), and a transition interval arithmetic operation unit (72) which smoothens transition from the Coulomb frictional force torque estimation unit (70) to the viscous frictional force estimation unit (71) and transition from the viscous frictional force torque estimation unit (71) to the Coulomb frictional force torque estimation unit (70).Type: ApplicationFiled: August 1, 2013Publication date: September 17, 2015Inventors: Yuta Matsumoto, Yasunori Nishihara, Jun Fujita
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Patent number: 8805585Abstract: A handling apparatus having a belt conveyor (2) for conveying a work (10), a robot (4) for performing a predetermined operation for the work (10), a visual sensor (3) for photographing the work (10) being conveyed to produce work data indicating each work (10) in the photographed image, and a robot controller (5) for gathering the work data for each image thereby to produce a tracking data, and for storing the tracking data in a database, thereby to control the robot (4) with the database so that a predetermined operation is performed on the work (10) transferred to the position of the robot (4). The robot controller (5) performs a predetermined calculation on the work data read out from the database, detects the overlapped work data, and cancels the control of the actions of the robot (4) based on the overlapped work data. The robot controller (5) rearranges the sequences, in which the robot (4) performs the operation on each work (10).Type: GrantFiled: June 3, 2009Date of Patent: August 12, 2014Assignee: Toshiba Kikai Kabushiki KaishaInventor: Yasunori Nishihara
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Patent number: 8442668Abstract: A handling system able to efficiently process information relating to a plurality of conveyed articles, the handling system provided with a conveyer for conveying workpieces, a visual sensor for detecting positions of workpieces by acquiring images of a plurality of tracking ranges obtained by dividing a belt into sections, an encoder for detecting an amount of movement of the belt, a tracking manager for monitoring amounts of movement of the plurality of tracking ranges based on the amount of movement detected by the encoder and specifying the tracking range passing through a workpiece detection area, a workpiece manager for selecting the article in the tracking range specified by the tracking manager, and a controller for controlling operations of robots so as to hold the workpiece selected by the workpiece manager.Type: GrantFiled: December 14, 2009Date of Patent: May 14, 2013Assignee: Toshiba Kikai Kabushiki KaishaInventors: Yasunori Nishihara, Toshihiko Nakane
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Publication number: 20110082586Abstract: A handling apparatus having a belt conveyor (2) for conveying a work (10), a robot (4) for performing a predetermined operation for the work (10), a visual sensor (3) for photographing the work (10) being conveyed to produce work data indicating each work (10) in the photographed image, and a robot controller (5) for gathering the work data for each image thereby to produce a tracking data, and for storing the tracking data in a database, thereby to control the robot (4) with the database so that a predetermined operation is performed on the work (10) transferred to the position of the robot (4). The robot controller (5) performs a predetermined calculation on the work data read out from the database, detects the overlapped work data, and cancels the control of the actions of the robot (4) based on the overlapped work data. The robot controller (5) rearranges the sequences, in which the robot (4) performs the operation, on each work (10).Type: ApplicationFiled: June 3, 2009Publication date: April 7, 2011Applicant: TOSHIBA KIKAI KABUSHIKI KAISHAInventor: Yasunori Nishihara
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Publication number: 20100094453Abstract: A handling system able to efficiently process information relating to a plurality of conveyed articles, the handling system provided with a conveyer for conveying workpieces, a visual sensor for detecting positions of workpieces by acquiring images of a plurality of tracking ranges obtained by dividing a belt into sections, an encoder for detecting an amount of movement of the belt, a tracking manager for monitoring amounts of movement of the plurality of tracking ranges based on the amount of movement detected by the encoder and specifying the tracking range passing through a workpiece detection area, a workpiece manager for selecting the article in the tracking range specified by the tracking manager, and a controller for controlling operations of robots so as to hold the workpiece selected by the workpiece manager.Type: ApplicationFiled: December 14, 2009Publication date: April 15, 2010Applicant: TOSHIBA KIKAI KABUSHIKI KAISHAInventors: Yasunori Nishihara, Toshihiko Nakane
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Patent number: 7654380Abstract: A handling system able to efficiently process information relating to a plurality of conveyed articles, the handling system provided with a conveyer for conveying workpieces, a visual sensor for detecting positions of workpieces by acquiring images of a plurality of tracking ranges obtained by dividing a belt into sections, an encoder for detecting an amount of movement of the belt, a tracking manager for monitoring amounts of movement of the plurality of tracking ranges based on the amount of movement detected by the encoder and specifying the tracking range passing through a workpiece detection area, a workpiece manager for selecting the article in the tracking range specified by the tracking manager, and a controller for controlling operations of robots so as to hold the workpiece selected by the workpiece manager.Type: GrantFiled: June 22, 2006Date of Patent: February 2, 2010Assignee: Toshiba Kikai Kabushiki KaishaInventors: Yasunori Nishihara, Toshihiko Nakane
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Publication number: 20080133056Abstract: The present invention provides a robot system which can move a robot hand with ease and enable fine adjustment, as well as can prevent collision of the hand with surrounding structures. In this invention, a robot system 10 includes a robot body 11 and a control section 20 for controlling the robot body 11. The robot body 11 includes a first hand 12, a J1 axis along which the first hand 12 is driven in a direction defined from a proximal end 12a of the first hand 12 to its distal end 12b, a J4 axis about which the J1 axis is rotated in a horizontal plane, a J3 axis along which the J4 axis is shifted in the vertical direction, and a J5 axis along which the J3 axis is shifted in a direction in a horizontal plane. The J1 axis, J3 axis, J4 axis and J5 axis are synchronously driven by the control section 20, whereby the first hand 12 can be moved on the X axis, Y axis and C axis in a tool coordinate system, on the basis of the center of the first hand 12.Type: ApplicationFiled: October 16, 2007Publication date: June 5, 2008Applicant: TOSHIBA KIKAI KABUSHIKI KAISHAInventor: Yasunori Nishihara
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Publication number: 20070007924Abstract: A handling system able to efficiently process information relating to a plurality of conveyed articles, the handling system provided with a conveyer for conveying workpieces, a visual sensor for detecting positions of workpieces by acquiring images of a plurality of tracking ranges obtained by dividing a belt into sections, an encoder for detecting an amount of movement of the belt, a tracking manager for monitoring amounts of movement of the plurality of tracking ranges based on the amount of movement detected by the encoder and specifying the tracking range passing through a workpiece detection area, a workpiece manager for selecting the article in the tracking range specified by the tracking manager, and a controller for controlling operations of robots so as to hold the workpiece selected by the workpiece manager.Type: ApplicationFiled: June 22, 2006Publication date: January 11, 2007Applicant: TOSHIBA KIKAI KABUSHIKI KAISHAInventors: Yasunori Nishihara, Toshihiko Nakane