Patents by Inventor Ryuta Kagawa
Ryuta Kagawa 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: 10836042Abstract: A robot system includes a robot and a motion control unit. The robot includes a bottom, a swiveling base, first to third arms. A bottom side of the first arm is supported on the swiveling base swivelably around a horizontal-direction second axis. A bottom side of the redundant arm is supported on a leading side of the first arm swivelably around an axis parallel to the second axis. A bottom side of the second arm is supported on a leading side of the redundant arm swivelably around a third axis parallel to the second axis. A bottom side of the third arm is supported on a leading side of the second arm rotatably around a fourth axis perpendicular to the third axis. The motion control unit activates the redundant arm so that a control point provided on the fourth axis linearly moves while maintaining a direction of the fourth axis.Type: GrantFiled: November 9, 2017Date of Patent: November 17, 2020Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Manabu Okahisa, Ryuta Kagawa, Hikaru Inoue, Tatsuo Hiro
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Patent number: 10625431Abstract: A robot includes a robot arm, a balancer, and a first mounting portion and a second mounting portion. The balancer is pressurized in advance by a predetermined amount of pressure and contracted to a dimension smaller than a predetermined mounting dimension of the robot arm. The first mounting portion and the second mounting portion are disposed on the robot arm to respectively accept a first end and a second end of the balancer so that the first end and the second end of the balancer are mounted on the robot arm. At least one mounting portion among the first mounting portion and the second mounting portion accepts the corresponding end, among the first end and the second end, of the balancer in a direction approximately parallel to a direction in which the balancer is expanded and contracted.Type: GrantFiled: March 14, 2016Date of Patent: April 21, 2020Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Kentaro Tanaka, Ryuta Kagawa
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Patent number: 10112299Abstract: A machining apparatus includes a robot including a first arm portion, a second arm portion, a tip portion, a second actuator swinging the first arm portion around a second axis, a third actuator swinging the second arm portion around a third axis, a seventh actuator adjusting a distance between the second axis and the third axis, and an end effector provided to a tip portion and applying machining to a workpiece. The robot is positioned such that a movable range of a tip portion of the first arm portion or a base end portion of the second arm portion interferes with the workpiece when the first arm portion is rotated around the second axis, where the distance is made longest, in a state where the robot exactly faces the workpiece.Type: GrantFiled: December 28, 2015Date of Patent: October 30, 2018Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Tatsuo Hiro, Kuniaki Katamine, Ryuta Kagawa, Yusuke Kinoshita, Manabu Okahisa, Masami Nakakura
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Publication number: 20180065254Abstract: A robot system includes a robot and a motion control unit. The robot includes a bottom, a swiveling base, first to third arms. A bottom side of the first arm is supported on the swiveling base swivelably around a horizontal-direction second axis. A bottom side of the redundant arm is supported on a leading side of the first arm swivelably around an axis parallel to the second axis. A bottom side of the second arm is supported on a leading side of the redundant arm swivelably around a third axis parallel to the second axis. A bottom side of the third arm is supported on a leading side of the second arm rotatably around a fourth axis perpendicular to the third axis. The motion control unit activates the redundant arm so that a control point provided on the fourth axis linearly moves while maintaining a direction of the fourth axis.Type: ApplicationFiled: November 9, 2017Publication date: March 8, 2018Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Manabu OKAHISA, Ryuta KAGAWA, Hikaru INOUE, Tatsuo HIRO
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Patent number: 9481097Abstract: A robot includes a base. A rotation base is coupled to the base and rotatable about a rotation axis relative to the base. An arm includes a base end that is coupled to the rotation base and that is turnable relative to the rotation base about a turning axis that is approximately perpendicular to the rotation axis. A balancer is coupled to the rotation base and the arm to provide force to between the rotation base and the arm. To a first attachment portion, one end of a jig is attachable to restrict displacement of the balancer in an axial direction. The first attachment portion is disposed at a coupling portion where the balancer and the arm are coupled to each other. To second attachment portions, another end of the jig is attachable. The second attachment portions are disposed at a predetermined distance from the rotation base.Type: GrantFiled: November 19, 2014Date of Patent: November 1, 2016Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventor: Ryuta Kagawa
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Publication number: 20160271806Abstract: A robot includes a robot arm, a balancer, and a first mounting portion and a second mounting portion. The balancer is pressurized in advance by a predetermined amount of pressure and contracted to a dimension smaller than a predetermined mounting dimension of the robot arm. The first mounting portion and the second mounting portion are disposed on the robot arm to respectively accept a first end and a second end of the balancer so that the first end and the second end of the balancer are mounted on the robot arm. At least one mounting portion among the first mounting portion and the second mounting portion accepts the corresponding end, among the first end and the second end, of the balancer in a direction approximately parallel to a direction in which the balancer is expanded and contracted.Type: ApplicationFiled: March 14, 2016Publication date: September 22, 2016Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Kentaro TANAKA, Ryuta KAGAWA
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Publication number: 20160136813Abstract: A machining apparatus includes a robot including a first arm portion, a second arm portion, a tip portion, a second actuator swinging the first arm portion around a second axis, a third actuator swinging the second arm portion around a third axis, a seventh actuator adjusting a distance between the second axis and the third axis, and an end effector provided to a tip portion and applying machining to a workpiece. The robot is positioned such that a movable range of a tip portion of the first arm portion or a base end portion of the second arm portion interferes with the workpiece when the first arm portion is rotated around the second axis, where the distance is made longest, in a state where the robot exactly faces the workpiece.Type: ApplicationFiled: December 28, 2015Publication date: May 19, 2016Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Tatsuo HIRO, Kuniaki KATAMINE, Ryuta KAGAWA, Yusuke KINOSHITA, Manabu OKAHISA, Masami NAKAKURA
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Patent number: 9151638Abstract: A rotating electric machine according to the embodiments includes a rotating-electric-machine unit, a rotation detector, an Oldham coupling, and a washer. The rotating-electric-machine unit includes a shaft. The rotation detector includes a body and a rotation input pin that is rotatably provided on the body. The Oldham coupling couples the rotation input pin of the rotation detector and the shaft to each other while allowing any relative displacement in a direction intersecting an axial direction. The washer is provided on the rotating-electric-machine unit while being positioned with respect to the shaft. The washer includes an attaching portion at which the body of the rotation detector is attached to the washer.Type: GrantFiled: March 29, 2013Date of Patent: October 6, 2015Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Ryuta Kagawa, Kenji Matsuura, Koji Uemura
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Patent number: 9138902Abstract: A robot includes a base; a swivel unit rotatably arranged on the base; a lower arm having a base end portion, a tip end portion and a side surface, the base end portion rotatably supported on the swivel unit to enable the lower arm to swing in a front-rear direction; and first and second cable bundles arranged on the side surface of the lower arm to extend along a longitudinal direction of the lower arm. The robot further includes a cable bundle support mechanism including a guide unit for supporting the first and second cable bundles to move in the longitudinal direction of the lower arm.Type: GrantFiled: September 9, 2011Date of Patent: September 22, 2015Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Hidetoshi Suzuki, Ryuta Kagawa, Takashi Sanada
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Patent number: 9077215Abstract: A rotary electric machine according to an aspect of an embodiment includes a detector and a brake. The detector is provided at the counter-load side of a shaft for rotating along with a rotor to drive a predetermined load and detects the rotation position of the shaft. The brake is exchangeably provided at the outer circumferential side of the detector to control the rotation of the shaft.Type: GrantFiled: January 11, 2012Date of Patent: July 7, 2015Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Ryuta Kagawa, Kenji Matsuura
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Publication number: 20150174770Abstract: A robot includes a base. A rotation base is coupled to the base and rotatable about a rotation axis relative to the base. An arm includes a base end that is coupled to the rotation base and that is turnable relative to the rotation base about a turning axis that is approximately perpendicular to the rotation axis. A balancer is coupled to the rotation base and the arm to provide force to between the rotation base and the arm. To a first attachment portion, one end of a jig is attachable to restrict displacement of the balancer in an axial direction. The first attachment portion is disposed at a coupling portion where the balancer and the arm are coupled to each other. To second attachment portions, another end of the jig is attachable. The second attachment portions are disposed at a predetermined distance from the rotation base.Type: ApplicationFiled: November 19, 2014Publication date: June 25, 2015Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventor: Ryuta KAGAWA
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Patent number: 8720296Abstract: A vertical articulated robot includes a base, a turning base, a first upper arm, a second upper arm, a front arm, a wrist assembly, a first motor, a second motor, a third motor, a fourth motor, and a wire body. The wire body includes a first wire portion, a second wire portion, a third wire portion, a fourth wire portion, a fifth wire portion, and a sixth wire portion. The first wire portion extends from the turning base along a third rotation axis and is connected to an outer surface of the first upper arm. The second wire portion extends from the first wire portion along a plane perpendicular to the third rotation axis and is connected to an outer surface of the first upper arm. The third wire portion extends in a U-shape from the second wire portion.Type: GrantFiled: August 20, 2012Date of Patent: May 13, 2014Assignee: Kabushiki Kaisha Yaskawa DenkiInventors: Keisuke Yonehara, Takashi Sanada, Tomoyuki Shiraki, Ryuta Kagawa, Takashi Hatanaka
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Publication number: 20130278249Abstract: A rotating electric machine according to the embodiments includes a rotating-electric-machine unit, a rotation detector, an Oldham coupling, and a washer. The rotating-electric-machine unit includes a shaft. The rotation detector includes a body and a rotation input pin that is rotatably provided on the body. The Oldham coupling couples the rotation input pin of the rotation detector and the shaft to each other while allowing any relative displacement in a direction intersecting an axial direction. The washer is provided on the rotating-electric-machine unit while being positioned with respect to the shaft. The washer includes an attaching portion at which the body of the rotation detector is attached to the washer.Type: ApplicationFiled: March 29, 2013Publication date: October 24, 2013Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Ryuta KAGAWA, Kenji MATSUURA, Koji UEMURA
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Publication number: 20130057119Abstract: A rotary electric machine according to an aspect of an embodiment includes a detector and a brake. The detector is provided at the counter-load side of a shaft for rotating along with a rotor to drive a predetermined load and detects the rotation position of the shaft. The brake is exchangeably provided at the outer circumferential side of the detector to control the rotation of the shaft.Type: ApplicationFiled: January 11, 2012Publication date: March 7, 2013Applicant: Kabushiki Kaisha Yaskawa DenkiInventors: Ryuta KAGAWA, Kenji MATSUURA
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Publication number: 20120312116Abstract: A vertical articulated robot includes a base, a turning base, a first upper arm, a second upper arm, a front arm, a wrist assembly, a first motor, a second motor, a third motor, a fourth motor, and a wire body. The wire body includes a first wire portion, a second wire portion, a third wire portion, a fourth wire portion, a fifth wire portion, and a sixth wire portion. The first wire portion extends from the turning base along a third rotation axis and is connected to an outer surface of the first upper arm. The second wire portion extends from the first wire portion along a plane perpendicular to the third rotation axis and is connected to an outer surface of the first upper arm. The third wire portion extends in a U-shape from the second wire portion.Type: ApplicationFiled: August 20, 2012Publication date: December 13, 2012Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Keisuke YONEHARA, Takashi SANADA, Tomoyuki SHIRAKI, Ryuta KAGAWA, Takashi HATANAKA
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Patent number: 8266979Abstract: A vertical articulated robot includes a base; a turning base provided on the base so as to be pivotable about a first rotation axis; a first upper arm provided on the turning base so as to be turnable about a second rotation axis that is in a plane perpendicular to the first rotation axis; a second upper arm provided on a distal end portion of the first upper arm so as to be pivotable about a third rotation axis that is perpendicular to the second rotation axis; a front arm provided on a distal end portion of the second upper arm so as to be turnable about a fourth rotation axis that is in a plane perpendicular to the third rotation axis; and a wrist assembly mounted on a distal end portion of the front arm. A motor that rotates the second upper arm is mounted on a frame of the second upper arm.Type: GrantFiled: March 10, 2010Date of Patent: September 18, 2012Assignee: Kabushiki Kaisha Yaskawa DenkiInventors: Keisuke Yonehara, Takashi Sanada, Tomoyuki Shiraki, Ryuta Kagawa, Takashi Hatanaka
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Publication number: 20120067157Abstract: A robot includes a base; a swivel unit rotatably arranged on the base; a lower arm having a base end portion, a tip end portion and a side surface, the base end portion rotatably supported on the swivel unit to enable the lower arm to swing in a front-rear direction; and first and second cable bundles arranged on the side surface of the lower arm to extend along a longitudinal direction of the lower arm. The robot further includes a cable bundle support mechanism including a guide unit for supporting the first and second cable bundles to move in the longitudinal direction of the lower arm.Type: ApplicationFiled: September 9, 2011Publication date: March 22, 2012Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Hidetoshi SUZUKI, Ryuta Kagawa, Takashi Sanada
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Patent number: 8079285Abstract: A robot includes a work tool, an arm, a cable, and a third member. The work tool is configured to perform a predetermined work with respect to a workpiece. The work tool is attached to the wrist. The arm supports the wrist and is rotatable around a rotational axis. The arm includes first and second members which are provided substantially in parallel to each other in a longitudinal direction of the arm to form a space between the first and second members. The cable extends through the space and is connected to the work tool. The third member connects the first and second members.Type: GrantFiled: July 7, 2009Date of Patent: December 20, 2011Assignee: Kabushiki Kaisha Yaskawa DenkiInventors: Ryuta Kagawa, Yoshiaki Miyazono, Takayuki Imanaka
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Publication number: 20100162845Abstract: A vertical articulated robot includes a base; a turning base provided on the base so as to be pivotable about a first rotation axis; a first upper arm provided on the turning base so as to be turnable about a second rotation axis that is in a plane perpendicular to the first rotation axis; a second upper arm provided on a distal end portion of the first upper arm so as to be pivotable about a third rotation axis that is perpendicular to the second rotation axis; a front arm provided on a distal end portion of the second upper arm so as to be turnable about a fourth rotation axis that is in a plane perpendicular to the third rotation axis; and a wrist assembly mounted on a distal end portion of the front arm. A motor that rotates the second upper arm is mounted on a frame of the second upper arm.Type: ApplicationFiled: March 10, 2010Publication date: July 1, 2010Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Keisuke YONEHARA, Takashi Sanada, Tomoyuki Shiraki, Ryuta Kagawa, Takashi Hatanaka
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Publication number: 20100000364Abstract: A robot includes a work tool, an arm, a cable, and a third member. The work tool is configured to perform a predetermined work with respect to a workpiece. The work tool is attached to the wrist. The arm supports the wrist and is rotatable around a rotational axis. The arm includes first and second members which are provided substantially in parallel to each other in a longitudinal direction of the arm to form a space between the first and second members. The cable extends through the space and is connected to the work tool. The third member connects the first and second members.Type: ApplicationFiled: July 7, 2009Publication date: January 7, 2010Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Ryuta Kagawa, Yoshiaki Miyazono, Takayuki Imanaka