Patents Assigned to Yaskawa America, Inc.
  • Publication number: 20240088672
    Abstract: A power inverter assembly including first and second power inverter units configured to receive power from at least one energy source, and a portable structural platform to support the units. The units each have a terminals for connection to an electric power system, a solar panel arrangement, and a DC energy storage subsystem. The units are coupled to the platform. The first unit has a first pre-set AC power rating having a first maximum AC power output value for output to the power system and the second unit has a second pre-set AC power rating having a second maximum AC power output value for output to the power system to provide the assembly with a total maximum power output rating based on a combined total of the first and second pre-set AC power ratings. The energy source can include the power system, the solar panel arrangement, and the storage subsystem.
    Type: Application
    Filed: September 6, 2023
    Publication date: March 14, 2024
    Applicant: YASKAWA AMERICA INC.
    Inventors: Jihua MA, Chris ROYER, Michael ZUERCHER, Miles C. RUSSELL
  • Publication number: 20230396184
    Abstract: A power converting apparatus includes one or more series multiplex power converter each including single-phase power converting cells. Outputs of the single-phase power converting cells are connected in series. Each of the single-phase power converting cells has switching elements and is configured to output an output voltage by switching the switching elements in accordance with the drive signal. The control circuitry is configured to output the drive signal to the single-phase power converting cells such that, during a halt period in which the switching elements of at least one of the single-phase power converting cells do not perform switching at a short time interval shorter than a predetermined time interval to output the output voltages, the switching elements of a remainder of the single-phase power converting cells performs switching at the short time interval to output the output voltages.
    Type: Application
    Filed: August 18, 2023
    Publication date: December 7, 2023
    Applicant: Yaskawa America, Inc.
    Inventors: Taisuke KATAYAMA, Eiji WATANABE
  • Patent number: 11673275
    Abstract: A method of teaching a robot including providing a pin at a location within a work station, and the robot in an area adjacent to the station. The robot having an arm and an end effector that pivots. The end effector has a through-beam sensor including a light emitter and a light receiver to sense when an object is present therebetween. The robot is moved to perform sensing operations in which the sensor senses the pin, such operations are performed while a position and/or an orientation of the end effector are varied to gather sensed position and orientation data. The sensing operations are performed such that the pin is located at different distances between the emitter and the receiver as the robot moves the sensor across the pin. Calculations are performed on the data to determine the location of the pin with respect to a coordinate system of the robot.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: June 13, 2023
    Assignees: YASKAWA AMERICA, INC., KABUSHIKI KAISHA YASKAWA DENKI
    Inventor: John Charles Rogers
  • Patent number: 11520312
    Abstract: A method of controlling a motor control apparatus includes selecting one of a first option and a first additional option in a first setting item in response to a first user input via a setting sequence prior to a control-mode-finding sub-process of the setting sequence, the first setting item relating to a motor and including the first option and the first additional option, the first option being different from the first additional option. A first control mode is selected in the control-mode-finding sub-process via the setting sequence based on the first option selected in the first setting item prior to the control-mode-finding sub-process. A second control mode is selected in the control-mode-finding sub-process via the setting sequence based on the first additional option selected in the first setting item prior to the control-mode-finding sub-process. The first control mode is different from the first option and the first additional option.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: December 6, 2022
    Assignees: KABUSHIKI KAISHA YASKAWA DENKI, YASKAWA AMERICA, INC.
    Inventors: Yasushi Kibe, William Phillips, Christopher Jaszczolt, Micah Stuedemann
  • Patent number: 11400582
    Abstract: A robotic handling apparatus includes a first arm member configured to pivot about a first pivot axis and a first drive unit configured to bring the first arm member into motion about the first pivot axis. A second arm member is configured to pivot about a second pivot axis, the second arm member being connected to the first arm member and having a distal end portion. A second drive unit is configured to bring the second arm member into motion about the second pivot axis. A third arm member is configured to pivot about a third pivot axis. A carrier unit is connected to the distal end portion of the second arm member and the distal end of the third arm member to define a distance.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: August 2, 2022
    Assignee: YASKAWA AMERICA, INC.
    Inventor: John Charles Rogers
  • Patent number: 11404991
    Abstract: A voltage source inverter comprises a rectifier circuit having an input for connection to a multi-phase AC power source and converting the AC power to DC power and an inverter circuit for receiving DC power and converting the DC power to AC power. A DC bus circuit is connected between the rectifier circuit and the inverter circuit to provide a relatively fixed DC voltage for the inverter circuit, the DC bus circuit comprising a DC bus including a first bus rail comprising an inductor and a second bus rail, and a soft charge circuit connected in series with a DC bus capacitor network between the first and second rails, the DC bus capacitor network comprising a first capacitor branch including a pair of capacitors with a fuse connected in series between the capacitors, a balancing resistor across each capacitor and a snubbing capacitor connected across the fuse.
    Type: Grant
    Filed: January 7, 2021
    Date of Patent: August 2, 2022
    Assignee: Yaskawa America, Inc.
    Inventors: Mahesh M. Swamy, Nathan T. Seipel
  • Publication number: 20220234148
    Abstract: A workpiece positioner assembly including a headstock apparatus having a motor and a headstock swing arm rotatably supported on the headstock apparatus. The headstock swing arm is configured to be rotated by the motor. The assembly includes a tailstock apparatus and a tailstock swing arm rotatably supported on the tailstock apparatus. The tailstock swing arm and the headstock swing arm are configured to support a workpiece. The assembly also includes a beam coupled to the headstock swing arm and to the tailstock swing arm to transmit rotation of the headstock swing arm to the tailstock swing arm, and a compliance assembly. The compliance assembly is provided between at least one of the headstock swing arm and the beam to enable relative movement between the headstock swing arm and the beam, and the tailstock swing arm and the beam to enable relative movement between the tailstock swing arm and the beam.
    Type: Application
    Filed: January 26, 2022
    Publication date: July 28, 2022
    Applicant: YASKAWA AMERICA INC.
    Inventors: Donald J. METZ, Alberto H. GAY, Carl S. WIENER
  • Publication number: 20220176567
    Abstract: A robot instructing apparatus for a robot having an end effector includes a teaching pendant, and orientation device, and at least one processor. The orientation device is configured to output an orientation of the teaching pendant based on an angular position of the teaching pendant about a vertical axis. The at least one processor is configured to generate movement instructions to move the robot during one or more teaching operations. The at least one processor is configured to generate the movement instructions in a translation teaching mode in which a translational change of the end effector, in response to the movement instructions, corresponds to an input direction input to the teaching pendant by a user relative to the orientation of the teaching pendant.
    Type: Application
    Filed: February 28, 2022
    Publication date: June 9, 2022
    Applicant: Yaskawa America, Inc.
    Inventors: Chetan KAPOOR, Changbeom PARK
  • Patent number: 11279044
    Abstract: A robot instructing apparatus includes a teaching pendant having a display and an inclination device. The inclination device outputs an inclination of the teaching pendant based on the inclination of the teaching pendant about at least one horizontal axis. The robot instructing apparatus also includes at least one processor that generates movement instructions to change a posture of the robot based on the inclination of the teaching pendant output by the inclination device during a teaching operation in which the movement instructions are generated.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: March 22, 2022
    Assignee: YASKAWA AMERICA, INC.
    Inventors: Chetan Kapoor, Changbeom Park
  • Publication number: 20210074566
    Abstract: A pre-aligner for pre-aligning a wafer having a notch. The pre-aligner includes a wafer platform having a wafer receiving surface, and a drive device. A detector is provided to detect the notch, and a memory is provided to store a notch window defining a range of angles in which the notch is predicted to be located in relation to a start position. A controller performs a pre-alignment operation where the wafer is rotated from the start position to an alignment location. The controller performs the operation such that the wafer is rotated at maximum acceleration/deceleration values from the start position to a notch location detected by the detector: where the operation is limited to a maximum velocity for rotation of the wafer from the start position to a notch window; and where the operation is limited to a scanning velocity within the notch window until the notch location is detected.
    Type: Application
    Filed: August 28, 2020
    Publication date: March 11, 2021
    Applicants: Yaskawa America, Inc.
    Inventors: John Charles ROGERS, Margaret Kathleen SWIECICKI
  • Patent number: 10867822
    Abstract: An apparatus including a base, a drive device disposed on the base, a sensor unit disposed on the base, and an engagement device. The drive device having an output shaft with a wafer receiving surface, and the drive device being configured to rotate the output shaft about an axis of rotation. The sensor unit being configured to sense a wafer received on the wafer receiving surface. The engagement device being configured to engage and disengage a translational mechanism between the drive device and the sensor unit. When the engagement device engages the translational mechanism, rotation of the output shaft about the axis of rotation by the drive device changes a relative positional relationship between the sensor unit and the axis of rotation.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: December 15, 2020
    Assignee: YASKAWA AMERICA, INC.
    Inventors: John Charles Rogers, Clark Thomas Tella
  • Patent number: 10753817
    Abstract: A testing apparatus for minimizing runout of a rotating assembly includes a measurement device and a runout evaluator. The measurement device measures a distance to a surface. The runout evaluator obtains a first runout of a surface of a first member of the rotating assembly from the measurement device. The first runout has a magnitude and a phase. The runout evaluator obtains a second runout of a surface of a second member of the rotating assembly from the measurement device. The second runout has a magnitude and a phase. The runout evaluator determines a rotational position of the first member relative to the second member which results in a reduced runout of the rotating assembly. The determination of the rotational position is based on the magnitude and the phase of the first runout and the magnitude and the phase of the second runout.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: August 25, 2020
    Assignee: YASKAWA AMERICA, INC.
    Inventors: John Charles Rogers, Clark Thomas Tella
  • Publication number: 20200254625
    Abstract: A method of teaching a robot including providing a pin at a location within a work station, and the robot in an area adjacent to the station. The robot having an arm and an end effector that pivots. The end effector has a through-beam sensor including a light emitter and a light receiver to sense when an object is present therebetween. The robot is moved to perform sensing operations in which the sensor senses the pin, such operations are performed while a position and/or an orientation of the end effector are varied to gather sensed position and orientation data. The sensing operations are performed such that the pin is located at different distances between the emitter and the receiver as the robot moves the sensor across the pin. Calculations are performed on the data to determine the location of the pin with respect to a coordinate system of the robot.
    Type: Application
    Filed: February 6, 2020
    Publication date: August 13, 2020
    Applicant: Yaskawa America, Inc.
    Inventor: John Charles ROGERS
  • Patent number: 10737817
    Abstract: A robotic handling apparatus includes a vertical motion mechanism and a first arm member connected to the vertical motion mechanism. The first arm member is movable in a vertical direction by the vertical motion mechanism. The robotic handling apparatus includes a second arm member connected to the vertical motion mechanism via the first arm member, and a first drive unit configured to drive the second arm member to pivot about a first axis. An end effector is connected to the second arm to transfer an article from a first position to a second position by the motion of the vertical motion mechanism, first arm member, and second arm member, the first arm member being mounted to a side of the vertical motion mechanism relative to the vertical direction.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: August 11, 2020
    Assignee: YASKAWA AMERICA, INC.
    Inventors: John Charles Rogers, Hiroyuki Handa, John D. Payne, Carl Michael Traynor
  • Patent number: 10712728
    Abstract: A motor control apparatus includes a memory and a setting selector. The memory is configured to store setting items each relating to a motor, and the setting sequence to sequentially set the setting items. The setting selector is connected to the memory and configured to select a newly selected item from among the setting items based on the setting sequence, a user input, and a currently selected item of the setting items.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: July 14, 2020
    Assignees: KABUSHIKI KAISHA YASKAWA DENKI, YASKAWA AMERICA, INC.
    Inventors: Yasushi Kibe, William Phillips, Christopher Jaszczolt, Micah Stuedemann
  • Patent number: 10580681
    Abstract: A robotic apparatus for transporting a workpiece includes a first arm that pivots about a first axis and a second arm that is pivotably connected to the first arm. The second arm has a surface upon which the workpiece can be received. A first drive unit of the robotic apparatus drives the first arm member to pivot about the first axis. The robotic apparatus includes a controller that controls the first drive unit to move the surface of the second arm member to transport the workpiece. The control unit also controls the first drive unit such that the surface is not moved at an acceleration value that exceeds a predetermined acceleration limit during the transport of the workpiece.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: March 3, 2020
    Assignee: YASKAWA AMERICA INC.
    Inventor: John Charles Rogers
  • Publication number: 20200039082
    Abstract: A robot instructing apparatus includes a teaching pendant having a display and an inclination device. The inclination device outputs an inclination of the teaching pendant based on the inclination of the teaching pendant about at least one horizontal axis. The robot instructing apparatus also includes at least one processor that generates movement instructions to change a posture of the robot based on the inclination of the teaching pendant output by the inclination device during a teaching operation in which the movement instructions are generated.
    Type: Application
    Filed: August 3, 2018
    Publication date: February 6, 2020
    Applicant: Yaskawa America, Inc.
    Inventors: Chetan KAPOOR, Changbeom PARK
  • Publication number: 20190299397
    Abstract: A robotic handling apparatus includes a first arm member configured to pivot about a first pivot axis and a first drive unit configured to bring the first arm member into motion about the first pivot axis. A second arm member is configured to pivot about a second pivot axis, the second arm member being connected to the first arm member and having a distal end portion. A second drive unit is configured to bring the second arm member into motion about the second pivot axis. A third arm member is configured to pivot about a third pivot axis. A carrier unit is connected to the distal end portion of the second arm member and the distal end of the third arm member to define a distance.
    Type: Application
    Filed: November 14, 2018
    Publication date: October 3, 2019
    Applicant: YASKAWA AMERICA, INC.
    Inventor: John Charles ROGERS
  • Patent number: 10411585
    Abstract: An inverter system includes an inverter apparatus and a smoothing capacitor charging-power apparatus. The inverter apparatus includes a transformer and an inverter cell. The transformer includes primary windings and secondary windings. Each of the inverter cells includes a converter circuit, a smoothing capacitor, and an inverter circuit. The converter circuit is configured to convert an intermediate alternating-current voltage to a direct-current voltage. The smoothing capacitor is configured to smooth the direct-current voltage. The inverter circuit is configured to at least partially generate a phase voltage of a variable alternating-current voltage from the direct-current voltage smoothed by the smoothing capacitor. Electric power is to be supplied from a second power supply different from a first power supply to the smoothing capacitor charging-power apparatus.
    Type: Grant
    Filed: June 8, 2014
    Date of Patent: September 10, 2019
    Assignees: KABUSHIKI KAISHA YASKAWA DENKI, YASKAWA AMERICA, INC.
    Inventors: Taisuke Katayama, Eiji Yamamoto, Kenji Mitsuda, Hiroshi Takagi, Thomas Bryan Sasada
  • Patent number: 10362698
    Abstract: As described herein, an electrical enclosure is sealed against environmental contamination. An enclosure cabinet has an interior space. The interior space is accessible through an opening. A door or cover selectively closes the opening. The enclosure cabinet is manufactured of numerous parts and has holes, joints, gaps, seams and/or fasteners. Electrical control devices are mounted in the cabinet. A thick-film elastomeric coating is on an outer surface of the cabinet. The coating has a thickness of at least 0.6 mm to provide a monolithic bridging layer over holes, joints, gaps, seams and/or fasteners to prevent environmental contamination from penetrating the cabinet.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: July 23, 2019
    Assignee: Yaskawa America, Inc.
    Inventors: Jeff Midday, Christian M. Johnson