Patents by Inventor Hiromitsu Takahashi

Hiromitsu Takahashi 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: 9737991
    Abstract: A robot control device includes a contact judging part which judges if the robot has contacted an object based on external force which is detected by the sensor, a stop command part which makes the robot stop when it is judged that the robot has contacted the object, a continuous contact judging part which judges if the robot continues to contact the object after making the robot stop, and a retraction command part which makes the robot retract in a direction away from the object when it is judged that the robot continues to contact the object.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: August 22, 2017
    Assignee: FANUC CORPORATION
    Inventors: Hiromitsu Takahashi, Kazuhisa Takaki
  • Patent number: 9724828
    Abstract: A robot system comprises an intrusion detector which detects that a person has entered into a monitoring area established around a robot, an installation table which supports the robot, a light emitting device which brightens a surface of the installation table, and a control device which receives a signal outputted by the intrusion detector and controls the light emitting device. The control device causes the light emitting device to emit light when it is detected that the person has entered into the monitoring area.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: August 8, 2017
    Assignee: FANUC CORPORATION
    Inventors: Tomoyuki Yamamoto, Takeaki Aramaki, Hiromitsu Takahashi
  • Publication number: 20170220008
    Abstract: A cell controller includes an inside information acquiring unit for acquiring the inside information of the plurality of manufacturing machines, and an inside information comparing unit which compares, with regard to a first manufacturing machine and a second manufacturing machine, which are selected by the comparison object selecting unit, first inside information and second inside information, which are acquired, and the inside information comparing unit extracting a difference therebetween. The cell controller also includes an abnormality cause finding unit for finding a cause of an abnormality that occurs in the first manufacturing machine or the second manufacturing machine, based on the difference, and an abnormality cause conveying unit for conveying the cause of the abnormality to the outside of the cell controller.
    Type: Application
    Filed: December 27, 2016
    Publication date: August 3, 2017
    Inventors: Hiromitsu TAKAHASHI, Toshimichi AOKI
  • Publication number: 20170185076
    Abstract: A cell control apparatus controls a plurality of manufacturing cells each including a manufacturing machine. The cell control apparatus comprises an operation extraction part configured to extract a transferable operation which can be performed by a manufacturing cell having operation time to spare among operations of a manufacturing cell having delay in operation. The cell control apparatus commands the manufacturing cell having delay in operation to stop at least a part of operations in the transferable operation and commands the manufacturing cell having the operation time to spare to perform the at least the part of the operations.
    Type: Application
    Filed: December 21, 2016
    Publication date: June 29, 2017
    Applicant: FANUC CORPORATION
    Inventors: Tomoyuki Yamamoto, Hiromitsu Takahashi
  • Patent number: 9682478
    Abstract: A safety monitoring device monitoring a robot includes a workpiece parameter switching unit switching a workpiece parameter, an external force estimation unit estimating, as an external force estimation value, a force acting on the robot from an external environment by using the workpiece parameter, an external force monitoring unit stopping the robot when the external force estimation value satisfies an external force determination condition, an operation monitoring unit stopping the robot, based on conditions such as a position of the robot being included within a predetermined region, an operation monitoring state switching unit switching between a disabling command and an enabling command for the operation monitoring unit, and an external force determination condition setting unit switching the external force determination condition to an operation monitoring disabling time external force determination condition at the disabling command and to an operation monitoring enabling time external force determina
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: June 20, 2017
    Assignee: Fanuc Corporation
    Inventors: Yasuhiro Naitou, Soichi Arita, Hiromitsu Takahashi
  • Publication number: 20170151680
    Abstract: A robot controller configured to be able to mitigate the effect that an emergency stop may have on a robot is disclosed. The robot controller includes: a load detection unit which detects the load of a motor for driving each individual articulated axis of the robot; a speed detection unit which detects an axial speed at each individual articulated axis of the robot; a cause-of-stop identifying unit which, when an emergency stop of the robot occurs, identifies a cause of the occurrence of the emergency stop; and a recording unit which records the cause of the occurrence of the emergency stop by associating the cause with the axial speed or the load of the motor. The robot controller may further include a display unit which displays information representing the state of occurrence of the emergency stop of the robot.
    Type: Application
    Filed: October 19, 2016
    Publication date: June 1, 2017
    Inventors: Yanxue LIANG, Yoshiharu NAGATSUKA, Hiromitsu TAKAHASHI
  • Publication number: 20170153625
    Abstract: A cell control apparatus comprises an operation information acquisition unit which acquires operation information of manufacturing machine, a failure prediction unit which predicts a failure time of the manufacturing machine based on the operation information of the manufacturing machine, and a replacement time acquisition unit which acquires a replacement time of the component from a component management apparatus. When the failure time is earlier than the replacement time, the cell control apparatus performs a control for reducing an operation load of the manufacturing machine on which a failure of the component is predicted so that the failure time is later than the replacement time.
    Type: Application
    Filed: November 29, 2016
    Publication date: June 1, 2017
    Applicant: FANUC CORPORATION
    Inventors: Tomoyuki Yamamoto, Hiromitsu Takahashi
  • Publication number: 20170113349
    Abstract: A safety monitoring device for a robot includes a position detecting unit for detecting the position of a robot, a force detecting unit for detecting an external force applied to the position detecting unit, an external force determination condition setting unit, which sets, as an external force determination condition, an intra-region external force determination condition when the present position of the robot detected by the position detecting unit remains within a predetermined region and which sets, as an external force determination condition, an out-of-region external force determination condition when the present position of the robot is outside of the predetermined region, and a robot stopping unit for stopping the robot when the external force detected by the force detecting unit satisfies the external force determination condition.
    Type: Application
    Filed: October 20, 2016
    Publication date: April 27, 2017
    Applicant: FANUC CORPORATION
    Inventors: Yasuhiro Naitou, Soichi Arita, Hiromitsu Takahashi
  • Publication number: 20170106541
    Abstract: There is provided a robot control device enabling a robot to carry various types of objects without exceeding an allowable weight thereof. The robot control device for controlling the robot for carrying an object in cooperation with a person includes a force acquisition part configured to acquire force applied from the object to the robot when the object is lifted, a comparison part configured to compare a force component in a gravity direction of the force acquired by the force acquisition part with a first threshold value predetermined with respect to the force component, and a stop command part configured to stop the robot when the force component is greater than the first threshold value.
    Type: Application
    Filed: October 13, 2016
    Publication date: April 20, 2017
    Inventors: Yasuhiro NAITOU, Soichi ARITA, Hiromitsu TAKAHASHI
  • Publication number: 20160349741
    Abstract: A production system in which a position of a robot relative to a machine tool can be measured and an operation position of the robot can be corrected based on the measurement result, by using a simple configuration. The robot has a vision device attached to a movable part such as a robot arm. The machine tool has a visual target arranged on an outer surface of the machine tool. An image of the visual target captured by a camera is processed by a robot controller or an image processor. Due to such image processing, the position of the robot relative to the machine tool can be measured. Further, the production system has a correcting part which corrects a position of a motion of the robot regarding supplying and ejecting a workpiece, based on the positional relationship between the robot and the machine tool.
    Type: Application
    Filed: April 28, 2016
    Publication date: December 1, 2016
    Inventors: Hiromitsu TAKAHASHI, Hiroji NISHI
  • Publication number: 20160279794
    Abstract: A robot controller includes a first time-series data obtaining part for obtaining first data used for fault diagnosis in time series and store the first data as first time-series data, a second time-series data obtaining part for obtaining second data used for extraction of the first data which is used for the fault diagnosis in time series and store the second data as second time-series data, a time specification part for specifying extraction time of the first data used for the fault diagnosis based on the second time-series data, a data extraction part for extracting the first data corresponding to the extraction time, and a diagnosis performing part for performing the fault diagnosis of the robot based on the first data extracted by the data extraction part.
    Type: Application
    Filed: March 14, 2016
    Publication date: September 29, 2016
    Inventors: Shougo INAGAKI, Soichi ARITA, Hiromitsu TAKAHASHI
  • Publication number: 20160243700
    Abstract: A human cooperation robot system includes: an external force detecting unit that detects an external force acting on a robot; a retreat operation commanding unit that commands a retreat operation for causing the robot to be moved in a direction such that the external force is decreased when the external force detected by the external force detecting unit is larger than a first threshold value; a position acquiring unit that a current position of the robot; and a retreat operation stopping unit that stops the retreat operation when the current position of the robot acquired by the position acquiring unit departs from a retreat area.
    Type: Application
    Filed: February 19, 2016
    Publication date: August 25, 2016
    Inventors: Yasuhiro NAITOU, Soichi ARITA, Hiromitsu TAKAHASHI
  • Publication number: 20160243705
    Abstract: A human cooperation robot system includes: an external force detecting unit that detects an external force acting on a robot; a retreat operation commanding unit that commands a retreat operation for causing the robot to be moved in a direction such that the external force is decreased when the external force detected by the external force detecting unit is greater than a first threshold value; and an external force variation monitoring unit that stops the retreat operation when a variation width of the external force at a predetermined time after the retreat operation is commanded by the retreat operation commanding unit is smaller than a second threshold value.
    Type: Application
    Filed: February 19, 2016
    Publication date: August 25, 2016
    Inventors: Yasuhiro NAITOU, Soichi ARITA, Hiromitsu TAKAHASHI
  • Publication number: 20160214259
    Abstract: A robot system comprises an intrusion detector which detects that a person has entered into a monitoring area established around a robot, an installation table which supports the robot, a light emitting device which brightens a surface of the installation table, and a control device which receives a signal outputted by the intrusion detector and controls the light emitting device. The control device causes the light emitting device to emit light when it is detected that the person has entered into the monitoring area.
    Type: Application
    Filed: January 22, 2016
    Publication date: July 28, 2016
    Inventors: Tomoyuki YAMAMOTO, Takeaki ARAMAKI, Hiromitsu TAKAHASHI
  • Publication number: 20160207197
    Abstract: In the past, sometimes a robot was made to unnecessarily retract. Therefore, this robot control device comprises a contact judging part which judges if the robot has contacted an object based on external force which is detected by the sensor, a stop command part which makes the robot stop when it is judged that the robot has contacted the object, a continuous contact judging part which judges if the robot continues to contact the object after making the robot stop, and a retraction command part which makes the robot retract in a direction away from the object when it is judged that the robot continues to contact the object.
    Type: Application
    Filed: January 19, 2016
    Publication date: July 21, 2016
    Inventors: Hiromitsu TAKAHASHI, Kazuhisa TAKAKI
  • Publication number: 20160121484
    Abstract: A control device includes an estimated torque calculation unit, an actual torque calculation unit, a torque comparison unit, and a stop unit. The estimated torque calculation unit calculates an estimated torque for maintaining the posture of an automatic machine based on preset load information when the machine is in a resting state in which its posture is maintained by a torque applied by a servomotor. The actual torque calculation unit calculates an actual torque actually applied to maintain the posture. The torque comparison unit compares an error between the estimated and actual torques with a predetermined first threshold. The stop unit stops subsequent operations of the automatic machine when the error is greater than the first threshold.
    Type: Application
    Filed: October 21, 2015
    Publication date: May 5, 2016
    Inventors: Yu IKEDA, Hiromitsu TAKAHASHI, Soichi ARITA
  • Publication number: 20160072368
    Abstract: Each cross-section of the connector member assembling hole and the assembly main body 51a in a direction intersecting the insertion direction has a point-symmetrical circular shape with the insertion shaft center FC as the center. A pair of connector-side female terminals 57a, opposed to each other with the insertion shaft center FC as the center, is provided at the distal end side in the insertion direction of the assembly main body 51a, and a pair of brush-side male terminals, opposed to each other with the insertion shaft center FC as the center and to which the connector-side female terminals 57a are connected, is provided to a portion of the brush holder opposite to the connector member assembling hole.
    Type: Application
    Filed: April 24, 2014
    Publication date: March 10, 2016
    Inventors: Hiroyuki Uchimura, Masashi Suto, Hiromitsu Takahashi, Takayuki Yokoyama
  • Publication number: 20160039092
    Abstract: A robot control device includes a correction amount calculation unit that calculates a correction amount for collecting a deviation of a tip position of a tool attached to a tip of a robot due to an external force applied to the tool and a correction profile generation unit that generates a correction profile indicating a relationship between the correction amount calculated by the correction amount calculation unit and time.
    Type: Application
    Filed: August 4, 2015
    Publication date: February 11, 2016
    Inventors: Kunihiko HARADA, Hiromitsu TAKAHASHI, Soichi ARITA
  • Publication number: 20160011588
    Abstract: A robot control apparatus includes a setting unit which sets a workpiece parameter, which is a parameter of a workpiece itself and affects transferability of the workpiece transferred by the industrial robot, a storage unit which stores a rated workpiece parameter, which is a maximum parameter of the workpiece itself which can be transferred by the robot at a rated velocity, and a velocity limiting unit which reduces the maximum velocity of the industrial robot to a value lower than the rated velocity when the workpiece parameter set by the setting unit exceeds the rated workpiece parameter stored in the storage unit.
    Type: Application
    Filed: July 13, 2015
    Publication date: January 14, 2016
    Inventors: Hiromitsu TAKAHASHI, Tsuyoshi HANNYA
  • Publication number: 20150314445
    Abstract: A safety monitoring device monitoring a robot includes a workpiece parameter switching unit switching a workpiece parameter, an external force estimation unit estimating, as an external force estimation value, a force acting on the robot from an external environment by using the workpiece parameter, an external force monitoring unit stopping the robot when the external force estimation value satisfies an external force determination condition, an operation monitoring unit stopping the robot, based on conditions such as a position of the robot being included within a predetermined region, an operation monitoring state switching unit switching between a disabling command and an enabling command for the operation monitoring unit, and an external force determination condition setting unit switching the external force determination condition to an operation monitoring disabling time external force determination condition at the disabling command and to an operation monitoring enabling time external force determina
    Type: Application
    Filed: April 28, 2015
    Publication date: November 5, 2015
    Applicant: FANUC CORPORATION
    Inventors: Yasuhiro Naitou, Soichi Arita, Hiromitsu Takahashi