Patents Assigned to Kabushiki Kaisha Yaskawa Denki
  • Publication number: 20210324950
    Abstract: Provided is a spur gear component including a plurality of teeth protruding in a radial direction, extending in an axial direction, and arranged at equal pitches in a circumferential direction, the spur gear component including a fiber material having a shape corresponding to an arrangement pattern of the plurality of teeth and wound in a spiral shape around a center axis.
    Type: Application
    Filed: May 15, 2019
    Publication date: October 21, 2021
    Applicants: ENEOS Corporation, KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Masaaki SHINAGAWA, Yoshiaki KUBOTA, Tuyoshi NONAKA
  • Publication number: 20210329740
    Abstract: An industrial machine system includes a slave device that is a component of an industrial machine, and a master device including circuitry that communicates with the slave device and control the slave device. The slave device and the master device are synchronized via a first wireless network, and communicate communication data for controlling the slave device via a second wireless network which is different from the first wireless network.
    Type: Application
    Filed: June 30, 2021
    Publication date: October 21, 2021
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Kazutoshi KOBAYASHI, Hidetsugu KOGA
  • Publication number: 20210302940
    Abstract: A task resumption system including processing circuitry that receives a task resumption specification for task resumption by a device when the device, which sequentially performs multiple tasks, stops during processing, acquires a current state of the device, acquires a resume state corresponding to the task resumption of the device, causes the device to transition from the current state to the resume state, and causes the device to resume the task according to the resume state.
    Type: Application
    Filed: March 25, 2021
    Publication date: September 30, 2021
    Applicant: Kabushiki Kaisha Yaskawa Denki
    Inventor: Takashi NAGASAKI
  • Publication number: 20210305924
    Abstract: A motor control apparatus includes control circuitry and rotation direction adjusting circuitry. The control circuitry is configured to output, in accordance with a phase sequence with respect to a motor, a drive command signal which is generated based on a motor rotation signal output from a motor rotation detector to control the motor. The rotation direction adjusting circuitry is configured to match the phase sequence with rotation direction information included in the motor rotation signal if a first trouble signal showing excessive motor current or excessive motor speed is input via an operation unit.
    Type: Application
    Filed: March 24, 2021
    Publication date: September 30, 2021
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventor: Hiroaki OYA
  • Publication number: 20210291371
    Abstract: A robot control apparatus includes a drive controller configured to control a plurality of motors which are configured to drive a plurality of link mechanisms of a parallel link robot, respectively, and abnormality determination circuitry configured to determine based on state data of the plurality of motors whether at least one of collision of the parallel link robot and dislocation in the link mechanisms occurs.
    Type: Application
    Filed: March 3, 2021
    Publication date: September 23, 2021
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Yasufumi YOSHIURA, Teruhisa KITAGAWA
  • Patent number: 11123864
    Abstract: A motion teaching apparatus includes a teaching motion detection device, a demonstration tool, and circuitry. A robot includes a leading end to move in a first coordinate system. A teaching motion detection device detects a position of the demonstration tool in a second coordinate system. The circuitry derives a relationship between the first and second coordinate system based on a position of the demonstration tool in the first coordinate system at at least one spot and based on the position of the demonstration tool in the second coordinate system at the at least one spot; obtains a transition of the position of the demonstration tool during the demonstration using the demonstration tool; and generates a motion command to control motion of the leading end of the robot based on the transition and the coordinate system relationship information.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: September 21, 2021
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Toshihiro Iwasa, Ryoichi Nagai, Nathanael Mullennix, Shingo Ando, Kenichi Yasuda
  • Patent number: 11103993
    Abstract: Provided is a robot system including: a robot including a hand; a unit job storage section configured to store a unit job; a linking job generation section configured to generate a linking job being a command to move the hand from an end position at which a first unit job has ended to a start position at which a second unit job to be executed subsequently after the first unit job is started; an action command generation section configured to generate an action command for the robot by connecting the unit jobs and the linking job in series, based on arrangement of a plurality of processing symbols; and a required time calculation section configured to calculate a required time of the action command by adding required times of the unit jobs and a required time of the linking job.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: August 31, 2021
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Takashi Nagasaki, Hirokazu Kariyazaki
  • Patent number: 11101715
    Abstract: A rotating electric machine includes a housing, a stator core housed in the housing, a plurality of systems of winding groups, a plurality of first lead wires, and a plurality of terminal boxes. The plurality of systems of winding groups are arranged in the stator core and electrically connected to a plurality of power conversion devices, one system of winding group is defined as a plurality of windings electrically connected to one power conversion device. The plurality of first lead wires are electrically connected to the plurality of systems of winding groups and wired inside the housing. The plurality of terminal boxes are arranged at a plurality of places in an outer circumference of the housing, the plurality of first lead wires are distributed in a unit of the system and introduced into the plurality of terminal boxes.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: August 24, 2021
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Koji Kajimoto, Eigo Hayashi
  • Patent number: 11092950
    Abstract: To enhance the productivity of an offline teaching work by visualizing the working position, path, and the like of an end effector in offline teaching. A robot teaching device, includes: a teaching point marker display unit configured to display, on a GUI, teaching point markers for marking teaching points in a three-dimensional modeling space in which at least a three-dimensional model of a robot including an end effector and a three-dimensional model of a work piece are arranged, the teaching points serving as target passing points of the end effector; a joined path display unit configured to display, on the GUI, a joined path, which is a path connecting successive points among the teaching points to each other; and a changing point marker display unit configured to display, on the GUI, a changing point marker marking a point at which a working state of the end effector changes.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: August 17, 2021
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Yoshifumi Onoyama, Koichi Kuwahara
  • Publication number: 20210249971
    Abstract: A power conversion device connected in parallel to a second power conversion device including power conversion circuitry that performs power conversion by changing a connection state between first multiple lines on a primary side and second multiple lines on a secondary side, baseline selection circuitry that selects one of the second multiple lines on the secondary side as a baseline and partial modulation control circuitry that controls the power conversion circuitry to maintain a state in which the baseline is connected to one of the first multiple lines on the primary side and to change a connection state between other second multiple lines on the secondary side and the first multiple lines on the primary side, wherein the baseline selection circuitry switches a line selected as the baseline based on a switching timing used by second baseline selection circuitry of the second power conversion device to select a second baseline.
    Type: Application
    Filed: April 29, 2021
    Publication date: August 12, 2021
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Kentaro INOMATA, Akira YAMAZAKI, Masato HIGUCHI, Hidenori HARA
  • Patent number: 11077552
    Abstract: A control system for an actuator includes a non-transitory computer readable medium storing a database in which first information, second information and third information are stored and correlated with each other, and processing circuitry that performs machine learning based on the first information, the second information and the third information stored in the database. The first information is associated with a rotational speed of a reducer in the actuator, the second information is associated with a torque acting on the reducer, the third information indicates a concentration of iron powder in grease in the reducer, and the machine learning builds a concentration estimation model indicating a relationship between the first information, the second information and the third information.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: August 3, 2021
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Mitsuaki Nakanishi, Tsuyoshi Wakamatsu, Yutaro Uchida
  • Publication number: 20210229267
    Abstract: A robot system includes first and third robots arranged along a transport direction in which a workpiece is conveyed, and a second robot arranged between the first and third robots along the transport direction. Each of the first and third robots has a first distal end at which a first end effector is configured to be provided to work on the workpiece and has a plurality of axes arranged in a first axis configuration in which a rotation axis, a pivot axis, a pivot axis, and a rotation axis are arranged in this order from the first distal end. The second robot has a second distal end at which a second end effector is configured to be provided to work on the workpiece. The second robot has a second axis configuration different from the first axis configuration.
    Type: Application
    Filed: April 13, 2021
    Publication date: July 29, 2021
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Tsuyoshi ITO, Kiminori NISHIMURA
  • Publication number: 20210221009
    Abstract: A manipulation unit includes a body, a tool holder, and a plurality of manipulated switches. The body has a first end, a second end opposite to the first end, and a cylindrical circumferential outer surface that extends from the first end to the second end and which is configured to be held to perform direct teaching to a robot. The first end is attachable to a leading end of a robot arm of the robot. The tool holder is connected to the second end and configured to hold a tool. The plurality of manipulated switches are configured to send signal to a robot controller to perform the direct teaching. The plurality of manipulated switches are provided on the body to be aligned along a circumferential direction of the cylindrical circumferential outer surface so that the direct teaching is performed with a hand which holds the cylindrical circumferential outer surface.
    Type: Application
    Filed: April 8, 2021
    Publication date: July 22, 2021
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Yuichi SATO, Tamio NAKAMURA, Tetsuro IZUMI, Takashi NISHIMURA, Shohei OHNO
  • Patent number: 11065764
    Abstract: A method of generating a robot operation command includes extracting a work command from an overall work flow; extracting, from a command definition database, a command definition corresponding to the extracted work command, the work command having been read; generating, by referring to the read work command, a set of unit jobs in which at least one work command is arranged in order, based on the extracted command definition; generating, for a plurality of unit jobs, a connecting job for causing a robot to be moved from an end position of a previous unit job to a start position of a subsequent unit job; and generating a robot operation command in which the unit jobs and the connecting job are continuous.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: July 20, 2021
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Yoichi Kakisaka, Yukio Hashiguchi, Hirokazu Kariyazaki, Takashi Nagasaki, Yukiko Sawada, Keita Morisaki
  • Patent number: 11054814
    Abstract: To enhance the productivity of an offline teaching work by visualizing the working position, path, and the like of an end effector in offline teaching. A robot teaching device, includes: a teaching point marker display unit configured to display, on a GUI, teaching point markers for marking teaching points in a three-dimensional modeling space in which at least a three-dimensional model of a robot including an end effector and a three-dimensional model of a work piece are arranged, the teaching points serving as target passing points of the end effector; a joined path display unit configured to display, on the GUI, a joined path, which is a path connecting successive points among the teaching points to each other; and a changing point marker display unit configured to display, on the GUI, a changing point marker marking a point at which a working state of the end effector changes.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: July 6, 2021
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Yoshifumi Onoyama, Koichi Kuwahara
  • Publication number: 20210191369
    Abstract: A distributed motor control system includes motor control devices that individually control motors that coordinately drive an industrial machine. Each of at least two motor control devices of the motor control devices includes processing circuitry that performs sharing processing including sharing coordinated control data, used in coordinated driving of the industrial machine between the at least two motor control devices, via data communication, and control a corresponding motor using the coordinated control data shared via the sharing-processing.
    Type: Application
    Filed: December 11, 2020
    Publication date: June 24, 2021
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventor: Isamu MATSUMURA
  • Publication number: 20210181709
    Abstract: A data collection system includes a subordinate controller configured to control an electrical device, and a superordinate controller connected to the subordinate controller via synchronous communication and asynchronous communication to control the subordinate controller. The superordinate controller includes a reference signal transmitter to transmit a timing reference signal to the subordinate controller via the synchronous communication. The subordinate controller includes data storage configured to record data relating to the electrical device; a delay time calculator to measure a delay time from a timing at which the subordinate controller receives the timing reference signal to a timing at which the data storage starts recording the data; and a data transmitter configured to transmit the data and the delay time to the superordinate controller via the asynchronous communication or the synchronous communication.
    Type: Application
    Filed: February 24, 2021
    Publication date: June 17, 2021
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Ayaka HASHIMOTO, Hiroshi OKAMOTO, Masaomi KUDO, Yu KATONO
  • Patent number: 11038443
    Abstract: A motor control system includes a motor, and a motor control apparatus including first processing circuitry that, based on a driving state quantity of the motor, controls driving power supplied to the motor, safety request input receiving circuitry through which a safety request signal is input from outside the motor control apparatus, safety cooperation input receiving circuitry through which a safety cooperation signal is input from outside the motor control apparatus, safety cooperation output circuitry through which the motor control apparatus outputs the safety cooperation signal to outside the motor control apparatus, and second processing circuitry that, upon input of at least one signal among the safety request signal and the safety cooperation signal, monitors a relationship between a predetermined motion monitor pattern and the driving state quantity and outputs the safety cooperation signal.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: June 15, 2021
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventor: Kunimasa Ando
  • Patent number: 11027864
    Abstract: A layered food packaging system including a conveyor that conveys a first layered food and a second layered food, a lamination device that laminates the first layered food onto the second layered food on the conveyor such that a layered food laminate is made, a carrier device that holds the layered food laminate and carries the layered food laminate from the conveyor, and a package device that prepares a bag for the layered food laminate carried by the carrier device and places the layered food laminate into the bag.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: June 8, 2021
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Tomoya Hyodo, Haruhiko Koike, Teruhisa Kitagawa, Koichi Kirihara, Motohiro Hamazawa
  • Patent number: 11027421
    Abstract: A robot is provided which has: a housing including a plurality of joints; a reduction gear placed in the joint, the reduction gear including a lubrication chamber where a gear mechanism for slowing down and transmitting an output of a motor and lubricant is sealed; and an air chamber placed inside the housing, the air chamber communicating with the lubrication chamber.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: June 8, 2021
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Naoyuki Ohtsubo, Tsuyoshi Ito, Yuji Ishimaru