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).

  • Patent number: 10836042
    Abstract: 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: Grant
    Filed: November 9, 2017
    Date of Patent: November 17, 2020
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Manabu Okahisa, Ryuta Kagawa, Hikaru Inoue, Tatsuo Hiro
  • Patent number: 10625431
    Abstract: 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: Grant
    Filed: March 14, 2016
    Date of Patent: April 21, 2020
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Kentaro Tanaka, Ryuta Kagawa
  • Patent number: 10112299
    Abstract: 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: Grant
    Filed: December 28, 2015
    Date of Patent: October 30, 2018
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Tatsuo Hiro, Kuniaki Katamine, Ryuta Kagawa, Yusuke Kinoshita, Manabu Okahisa, Masami Nakakura
  • Publication number: 20180065254
    Abstract: 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: Application
    Filed: November 9, 2017
    Publication date: March 8, 2018
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Manabu OKAHISA, Ryuta KAGAWA, Hikaru INOUE, Tatsuo HIRO
  • Patent number: 9481097
    Abstract: 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: Grant
    Filed: November 19, 2014
    Date of Patent: November 1, 2016
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventor: Ryuta Kagawa
  • Publication number: 20160271806
    Abstract: 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: Application
    Filed: March 14, 2016
    Publication date: September 22, 2016
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Kentaro TANAKA, Ryuta KAGAWA
  • Publication number: 20160136813
    Abstract: 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: Application
    Filed: December 28, 2015
    Publication date: May 19, 2016
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Tatsuo HIRO, Kuniaki KATAMINE, Ryuta KAGAWA, Yusuke KINOSHITA, Manabu OKAHISA, Masami NAKAKURA
  • Patent number: 9151638
    Abstract: 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: Grant
    Filed: March 29, 2013
    Date of Patent: October 6, 2015
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Ryuta Kagawa, Kenji Matsuura, Koji Uemura
  • Patent number: 9138902
    Abstract: 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: Grant
    Filed: September 9, 2011
    Date of Patent: September 22, 2015
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Hidetoshi Suzuki, Ryuta Kagawa, Takashi Sanada
  • Patent number: 9077215
    Abstract: 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: Grant
    Filed: January 11, 2012
    Date of Patent: July 7, 2015
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Ryuta Kagawa, Kenji Matsuura
  • Publication number: 20150174770
    Abstract: 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: Application
    Filed: November 19, 2014
    Publication date: June 25, 2015
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventor: Ryuta KAGAWA
  • Patent number: 8720296
    Abstract: 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: Grant
    Filed: August 20, 2012
    Date of Patent: May 13, 2014
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Keisuke Yonehara, Takashi Sanada, Tomoyuki Shiraki, Ryuta Kagawa, Takashi Hatanaka
  • Publication number: 20130278249
    Abstract: 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: Application
    Filed: March 29, 2013
    Publication date: October 24, 2013
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Ryuta KAGAWA, Kenji MATSUURA, Koji UEMURA
  • Publication number: 20130057119
    Abstract: 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: Application
    Filed: January 11, 2012
    Publication date: March 7, 2013
    Applicant: Kabushiki Kaisha Yaskawa Denki
    Inventors: Ryuta KAGAWA, Kenji MATSUURA
  • Publication number: 20120312116
    Abstract: 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: Application
    Filed: August 20, 2012
    Publication date: December 13, 2012
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Keisuke YONEHARA, Takashi SANADA, Tomoyuki SHIRAKI, Ryuta KAGAWA, Takashi HATANAKA
  • Patent number: 8266979
    Abstract: 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: Grant
    Filed: March 10, 2010
    Date of Patent: September 18, 2012
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Keisuke Yonehara, Takashi Sanada, Tomoyuki Shiraki, Ryuta Kagawa, Takashi Hatanaka
  • Publication number: 20120067157
    Abstract: 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: Application
    Filed: September 9, 2011
    Publication date: March 22, 2012
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Hidetoshi SUZUKI, Ryuta Kagawa, Takashi Sanada
  • Patent number: 8079285
    Abstract: 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: Grant
    Filed: July 7, 2009
    Date of Patent: December 20, 2011
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Ryuta Kagawa, Yoshiaki Miyazono, Takayuki Imanaka
  • Publication number: 20100162845
    Abstract: 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: Application
    Filed: March 10, 2010
    Publication date: July 1, 2010
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Keisuke YONEHARA, Takashi Sanada, Tomoyuki Shiraki, Ryuta Kagawa, Takashi Hatanaka
  • Publication number: 20100000364
    Abstract: 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: Application
    Filed: July 7, 2009
    Publication date: January 7, 2010
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Ryuta Kagawa, Yoshiaki Miyazono, Takayuki Imanaka