Patents Assigned to Kabushiki Kaisha Yaskawa Denki
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Publication number: 20230097222Abstract: A coating system includes a first robot configured to open an opening/closing portion of a vehicle body and a second robot configured to coat an interior of the vehicle body through the opening/closing portion opened by the first robot. The first robot has a first base via which the first robot is mounted to a structure forming a coating area. The second robot has a second base via which the second robot is mounted. The second base is mounted below the first base in a vertical direction.Type: ApplicationFiled: September 9, 2022Publication date: March 30, 2023Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Katsuhiko YOSHINO, Naoyuki OHTSUBO, Yasuhiro KATAOKA, Kenichiro SHIGEYOSHI
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Patent number: 11604452Abstract: 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: GrantFiled: December 11, 2020Date of Patent: March 14, 2023Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventor: Isamu Matsumura
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Patent number: 11591118Abstract: A layered food packaging system includes: a carrier device configured to convey a sandwich in a horizontal posture in which a layering direction of the sandwich is substantially vertical; a temporary placement table configured to temporarily place the sandwich thereon in a vertical posture in which the layering direction of the sandwich is substantially horizontal; a first robot and a second robot configured to grip the sandwich that is conveyed by the carrier device, lift the sandwich from the carrier device, change the posture of the sandwich from the horizontal posture to the vertical posture, and temporarily place the sandwich on the temporary placement table; and a third robot configured to grip the sandwich that is temporarily placed on the temporary placement table, and insert the sandwich into a bag for packaging the layered food.Type: GrantFiled: May 24, 2021Date of Patent: February 28, 2023Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Haruhiko Koike, Tomoya Hyodo, Koji Hara, Tomohiro Kamishio, Koichi Kirihara, Atsuo Ikeda
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Patent number: 11577399Abstract: A robot system includes a robot, a vision sensor, a target position generation circuit, an estimation circuit, and a control circuit. The robot includes an end effector and is configured to work via the end effector on a workpiece which is disposed at a relative position and which is relatively movable with respect to the end effector. The vision sensor is configured to take an image of the workpiece. The target position generation circuit is configured to, based on the image, generate a target position of the end effector at every generation interval. The estimation circuit is configured to, at least based on relative position information related to the relative position, estimate a change amount in the relative position at every estimation interval. The control circuit is configured to control the robot to move the end effector based on the target position and the change amount.Type: GrantFiled: January 22, 2020Date of Patent: February 14, 2023Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Hiroshi Kumagai, Tamio Nakamura
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Publication number: 20230038090Abstract: A linear transport system includes a stator having a track and coils provided along the track, carriers with a magnet and movable along the track, scales provided on the carriers, sensors provided along the track at respective intervals and configured to detect the carriers to obtain scale positions of the scales, a parameter memory configured to memorize first cumulative values each corresponding to a corresponding sensor, and position calculation circuitry. Each of the first cumulative values is obtained by accumulating, from a reference position to the corresponding sensor, error correction values based on which errors between the respective intervals and measured values of the respective intervals are corrected. The position calculation circuitry is configured to calculate a position of a detected carrier based on detection data of a detecting sensor that has detected the detected carrier and based on the first cumulative value corresponding to the detecting sensor.Type: ApplicationFiled: June 30, 2022Publication date: February 9, 2023Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Tadashi OKUBO, Yoshiyuki EBIHARA, Josuke NAGAI
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Patent number: 11566920Abstract: An encoder includes a scale and a sensor. The scale has first and second absolute patterns. The sensor includes a light source, and first and second absolute light receivers. The first and second absolute light receivers receive light from the first and second absolute patterns, respectively. The first absolute light receiver receives light from the first pattern and includes first and second light receiving elements. Each first light receiving elements outputs a first signal with a first phase. Each second light receiving elements outputs a first signal with a second phase. The first and second light receiving elements are arranged alternately. The second absolute light receiver includes third and fourth light receiving elements. Each third light receiving element outputs a second signal with the first phase. The third and fourth light receiving elements are arranged alternately. Each fourth light receiving element outputs a second signal with the second phase.Type: GrantFiled: July 17, 2020Date of Patent: January 31, 2023Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Hiroshi Takada, Yasushi Yoshida, Shiro Yoshidomi, Masanobu Harada, Yasuhiro Matsutani, Daisuke Furukawa
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Patent number: 11550306Abstract: An information system for industrial equipment includes processing circuitry that controls processing apparatuses that each execute a predetermined process with respect to at least one workpiece, respectively collects, from the processing apparatuses, processing information sets that are respectively related to processing steps executed by the processing apparatuses until one corresponding product is manufactured from the at least one workpiece, and associates the processing information sets by assigning to the processing information sets a link identifier that permits a linkage between respective steps of the processing steps related to the one corresponding product.Type: GrantFiled: November 13, 2020Date of Patent: January 10, 2023Assignee: Kabushiki Kaisha Yaskawa DenkiInventors: Takeshi Nagata, Takahiko Suzuki, Kengo Goto, Yosuke Kamiya, Shinichiro Obata
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Patent number: 11545924Abstract: A power conversion device includes processing circuitry that estimates a magnet magnetic flux of an electric motor based on a d-axis magnetic flux generated in the electric motor, a d-axis inductance of the electric motor, and a d-axis current flowing in the electric motor, estimates a q-axis inductance of the electric motor based on a q-axis magnetic flux generated in the electric motor and a q-axis current flowing in the electric motor, estimates a drive force of the electric motor based on the magnet magnetic flux and the q-axis inductance, and corrects a current command such that the drive force follows a drive force command.Type: GrantFiled: July 28, 2021Date of Patent: January 3, 2023Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Kentaro Inomata, Akira Yamazaki
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Patent number: 11541532Abstract: A carrying device includes a swivel that swivels around a central axis line of a revolution orbit that passes through a workpiece transfer area and a workpiece work area for a workpiece to be worked on by a robot, multiple workpiece holders positioned on the swivel such that when a first one of the workpiece holders is positioned in the workpiece transfer area, a second one of the workpiece holders is positioned in the workpiece work area, a revolution driver that causes the swivel to swivel around the central axis line of the revolution orbit, and a tilting driver that tilts each of the workpiece holders with respect to the central axis line of the revolution orbit.Type: GrantFiled: April 10, 2020Date of Patent: January 3, 2023Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Katsuhiko Yoshino, Naoyuki Ohtsubo
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Patent number: 11526148Abstract: A control apparatus for performing control processing and user period processing within a control period for an industrial machine includes processing circuitry that sets content of the control processing, and sets an upper limit of the user period processing. The user period processing is different from the control processing.Type: GrantFiled: October 22, 2019Date of Patent: December 13, 2022Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Hiroshi Okamoto, Takeshi Nagata, Ayaka Hashimoto, Yu Katono, Naohide Sakimura, Masaomi Kudo, Takaaki Shogaki, Megumi Yasuda
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Patent number: 11527984Abstract: An abnormality determination system includes a state quantity obtaining circuit and an abnormality determination circuit. The state quantity obtaining circuit is configured to obtain a state quantity associated with a mechanical system. The abnormality determination circuit is configured to, according to a learning content obtained in a machine learning process and based on the state quantity, determine as to at least one of an occurrence of an abnormality in the mechanical system, an occurrence position of the abnormality, and a cause of the abnormality.Type: GrantFiled: May 21, 2020Date of Patent: December 13, 2022Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Takeshi Nagata, Takaaki Shogaki, Yasufumi Yoshiura, Tadashi Okubo, Toshinobu Kira
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Patent number: 11520312Abstract: 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: GrantFiled: June 3, 2020Date of Patent: December 6, 2022Assignees: KABUSHIKI KAISHA YASKAWA DENKI, YASKAWA AMERICA, INC.Inventors: Yasushi Kibe, William Phillips, Christopher Jaszczolt, Micah Stuedemann
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Patent number: 11522443Abstract: An inverter apparatus includes a main circuit substrate, an EMC filter substrate, a control substrate, and a panel. The main circuit substrate is configured to convert electric power and includes an output terminal through which the electric power is output from the inverter apparatus. The EMC filter substrate is provided on the main circuit substrate and configured to reduce propagation of electromagnetic noise. The EMC filter substrate includes a first input terminal through which the electric power is input to the inverter apparatus. The control substrate is provided on the EMC filter substrate so that the EMC filter substrate is sandwiched between the main circuit substrate and the control substrate. The control substrate is configured to control the main circuit substrate. The panel is provided on the control substrate so that the control substrate is sandwiched between the EMC filter substrate and the panel.Type: GrantFiled: June 22, 2020Date of Patent: December 6, 2022Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Ryosuke Tsumagari, Shigekatsu Nagatomo, Yuto Kubo, Yuki Tokimatsu
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Patent number: 11520315Abstract: Provided is a production system including: a plurality of industrial machines each configured to execute a process program for executing a predetermined process, and to perform at least one of refer or change of a machine variable; a controller configured to execute a system program for causing each of the plurality of industrial machines to operate based on an execution order specified for a plurality of predetermined processes, and to perform at least one of refer or change of a system variable; a storage configured to store conversion data for converting between the machine variable of each of the plurality of industrial machines and the system variable; and a circuitry configured to perform conversion between the machine variable of the each of the plurality of industrial machines and the system variable based on the conversion data of the each of the plurality of industrial machines.Type: GrantFiled: December 14, 2020Date of Patent: December 6, 2022Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Naoki Mizuno, Shinichiro Obata, Jongbeom Park, Aya Matsunaga
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Publication number: 20220385134Abstract: A rotary electric machine includes a rotor rotatable around an axis, a stator provided to surround the rotor and having a first side on one side, a connecting board, a bracket, connection pins electrically connected to the connecting board, a direct connection connector, and a main circuit connector. Stator windings are electrically connected the connecting board which is provided on the one side. The bracket has an opening and is provided on the one side to be connected to the stator so as to cover the connecting board and the first side of the stator. The direct connection connector is inserted into the opening such that the connection pins are inserted into the direct connection connector to be electrically connected to the direct connection connector. The main circuit connector is inserted into the opening and to be electrically connected to the direct connection connector.Type: ApplicationFiled: April 20, 2022Publication date: December 1, 2022Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Kenji FUNAKOSHI, Takeru HATANAKA
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Patent number: 11516099Abstract: A computer of a resource monitoring system is configured to execute an application for analyzing an operation of an industrial device. A use status acquisition module is configured to acquire a use status of a resource of the computer by the application. A display control module is configured to display the use status on a resource monitoring screen.Type: GrantFiled: September 13, 2019Date of Patent: November 29, 2022Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventor: Tomoyuki Nakamura
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Patent number: 11504860Abstract: A characteristic estimation system, comprising circuitry configured to, cause a robot hand configured to grip an object to operate based on operation information defining an operation of the robot hand, acquire a physical quantity at a time when the robot hand grips the object, and estimate a characteristic of the object based on the physical quantity.Type: GrantFiled: November 26, 2019Date of Patent: November 22, 2022Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Terumitsu Hayashi, Takeomi Hidaka, Tetsuya Yamasaki
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Patent number: 11493902Abstract: An industrial machine management system includes circuitry that collects changeable setting data of an industrial machine, determines, based on the setting data at each time point of multiple time points, whether a change has been made to the setting data, and outputs change information regarding the change when the change is determined as having been made to the setting data.Type: GrantFiled: January 27, 2020Date of Patent: November 8, 2022Assignee: Kabushiki Kaisha Yaskawa DenkiInventor: Mitsuaki Nakanishi
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Patent number: 11489467Abstract: 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: GrantFiled: March 24, 2021Date of Patent: November 1, 2022Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventor: Hiroaki Oya
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Patent number: 11487270Abstract: An industrial machine management system includes circuitry that collects changeable setting data of an industrial machine, determines, based on the setting data at each time point of multiple time points, whether a change has been made to the setting data, obtains change information regarding the change when the change is determined as having been made to the setting data, determines whether a predetermined event has occurred in the industrial machine, identifies, when the predetermined event is determined as having occurred, the change information such that the change information is related to the predetermined event, and outputs the change information that is identified.Type: GrantFiled: January 27, 2020Date of Patent: November 1, 2022Assignee: Kabushiki Kaisha Yaskawa DenkiInventor: Mitsuaki Nakanishi