Patents by Inventor Mitsuhiro Inazumi

Mitsuhiro Inazumi 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: 10909720
    Abstract: A control device determines whether deviation between a predetermined position detected by a processor and a reference predetermined position stored in advance in a control device is within a preset allowable range.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: February 2, 2021
    Inventors: Mitsuhiro Inazumi, Takahiko Noda
  • Patent number: 10491882
    Abstract: A calibration method for calibrating a first camera and a second camera which are different in at least one of an angle of view and a focal length includes capturing images which include a calibration tool having a first pattern configured with a plurality of first marks and a second pattern configured with a plurality of second marks, different in at least one of a shape between the first mark and the second mark, a size between the first mark and the second mark, and arrangement between the first marks and the second marks, by the first camera and the second camera, and calibrating the first camera and the second camera using patterns corresponding respectively to the first camera and the second camera.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: November 26, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Takahiko Noda, Mitsuhiro Inazumi
  • Publication number: 20190244388
    Abstract: An image processing device that detects a marker, in which the marker includes a first figure in which three or more figure centers are overlapped with each other and a data area provided on an internal or external portion of the first figure, and the image processing device detects the first figure and detects the data area based on the figure centers of the first figure.
    Type: Application
    Filed: April 16, 2019
    Publication date: August 8, 2019
    Inventors: Mitsuhiro INAZUMI, Seiji AISO
  • Patent number: 10311596
    Abstract: An image processing device that detects a marker, in which the marker includes a first figure in which three or more figure centers are overlapped with each other and a data area provided on an internal or external portion of the first figure, and the image processing device detects the first figure and detects the data area based on the figure centers of the first figure.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: June 4, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Mitsuhiro Inazumi, Seiji Aiso
  • Publication number: 20190037204
    Abstract: A calibration method for calibrating a first camera and a second camera which are different in at least one of an angle of view and a focal length includes capturing images which include a calibration tool having a first pattern configured with a plurality of first marks and a second pattern configured with a plurality of second marks, different in at least one of a shape between the first mark and the second mark, a size between the first mark and the second mark, and arrangement between the first marks and the second marks, by the first camera and the second camera, and calibrating the first camera and the second camera using patterns corresponding respectively to the first camera and the second camera.
    Type: Application
    Filed: July 30, 2018
    Publication date: January 31, 2019
    Inventors: Takahiko NODA, Mitsuhiro INAZUMI
  • Publication number: 20190035108
    Abstract: A control device determines whether deviation between a predetermined position detected by a processor and a reference predetermined position stored in advance in a control device is within a preset allowable range.
    Type: Application
    Filed: July 27, 2018
    Publication date: January 31, 2019
    Inventors: Mitsuhiro INAZUMI, Takahiko NODA
  • Publication number: 20190015989
    Abstract: A robot control device includes a processor that creates a parameter of a camera including a coordinate transformation matrix between a hand coordinate system of an arm and a camera coordinate system of the camera. The processor calculates a relationship between an arm coordinate system and a pattern coordinate system at the time of capturing the pattern image of the calibration pattern, and estimates a coordinate transformation matrix between the hand coordinate system of the arm and the camera coordinate system of the camera with the relationship between the arm coordinate system and the pattern coordinate system, a position and attitude of the arm at the time of capturing a pattern image, and the pattern image.
    Type: Application
    Filed: July 10, 2018
    Publication date: January 17, 2019
    Inventors: Mitsuhiro INAZUMI, Takahiko NODA
  • Publication number: 20190015988
    Abstract: An processor moves an arm to rotate a calibration pattern around three rotation axes linearly independent from each other and to stop at a plurality of rotation positions. A processor causes a camera to capture a pattern image of the calibration pattern at the plurality of rotation positions. A processor estimates parameters of the camera for calculating a coordinate transformation between a target coordinate system and a camera coordinate system using a pattern image captured at the plurality of rotation positions.
    Type: Application
    Filed: July 10, 2018
    Publication date: January 17, 2019
    Inventors: Mitsuhiro INAZUMI, Takahiko NODA
  • Publication number: 20180032049
    Abstract: A robot control device includes a processor that is configured to execute computer-executable instruction so as to control a robot that is capable of displacing a control target of a robot in a plurality of directions, wherein the processor is configured to cause the robot to perform displacement actuation of displacing the control target in a direction different from a direction of the external force among the plurality of directions in a case where a force detector detects external force.
    Type: Application
    Filed: July 24, 2017
    Publication date: February 1, 2018
    Inventor: Mitsuhiro INAZUMI
  • Patent number: 9816886
    Abstract: A force detection apparatus includes a first member, a second member, and a third member, the second member and the first member sandwich a plurality of piezoelectric elements (in a narrow sense, a first piezoelectric element and a second piezoelectric element), and the third member and the first member sandwich a plurality of piezoelectric elements (in a narrow sense, a third piezoelectric element and a fourth piezoelectric element) different from the plurality of piezoelectric elements sandwiched by the second member and the first member.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: November 14, 2017
    Assignee: Seiko Epson Corporation
    Inventor: Mitsuhiro Inazumi
  • Publication number: 20170109856
    Abstract: An image processing device that detects a marker, in which the marker includes a first figure in which three or more figure centers are overlapped with each other and a data area provided on an internal or external portion of the first figure, and the image processing device detects the first figure and detects the data area based on the figure centers of the first figure.
    Type: Application
    Filed: October 11, 2016
    Publication date: April 20, 2017
    Inventors: Mitsuhiro Inazumi, Seiji Aiso
  • Patent number: 9555549
    Abstract: A control device includes a reception unit that receives first operation information and second operation information different from the first operation information; and a process unit that instructs a robot to execute operations based on the first operation information and the second operation information using a plurality of captured images of an imaged target object, the images being captured multiple times while the robot moves from a first posture to a second posture different from the first posture.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: January 31, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Masaki Motoyoshi, Kenji Onda, Hiroyuki Kawada, Mitsuhiro Inazumi
  • Patent number: 9517562
    Abstract: A robot controller includes a force control unit that outputs a correction value of a target track of a robot based on a detected sensor value acquired from a force sensor, a target value output unit that obtains a target value by performing correction processing on the target track based on the correction value and outputs the obtained target value, and a robot control unit that performs feedback control of the robot based on the target value. The force control unit includes an impedance processor that obtains a solution of a differential equation in force control as the correction value before the conversion processing, and a nonlinear convertor that obtains the correction value after the conversion processing by performing nonlinear conversion processing on the correction value before the conversion processing acquired from the impedance processor and outputs the obtained correction value after the conversion processing.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: December 13, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Mitsuhiro Inazumi
  • Patent number: 9492925
    Abstract: A robot includes a control unit that controls a movable unit of the robot to move an endpoint of the movable unit closer to a target position, and an image acquisition unit that acquires a target image as an image containing the end point when the end point is in the target position, and a current image as an image containing the end point when the end point is in a current position. The control unit controls movement of the movable unit based on the current image and the target image and output from a force detection unit that detects a force acting on the movable unit.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: November 15, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Seiji Aiso, Hiroshi Hasegawa, Mitsuhiro Inazumi, Nobuhiro Karito
  • Patent number: 9463573
    Abstract: A robot control system includes a force control unit configured to output a correction value of a target track of a robot on the basis of sensor information acquired from a force sensor, a target-value output unit configured to apply correction processing based on the correction value to the target track to calculate a target value and output the calculated target value, and a robot control unit configured to perform feedback control of the robot on the basis of the target value. The force control unit includes a digital filter unit. The force control unit applies digital filter processing by the digital filter unit to the sensor information to calculate a solution of an ordinary differential equation in force control and outputs the correction value on the basis of the calculated solution.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: October 11, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Mitsuhiro Inazumi
  • Publication number: 20160109311
    Abstract: A force detection apparatus includes a first member, a second member, and a third member, the second member and the first member sandwich a plurality of piezoelectric elements (in a narrow sense, a first piezoelectric element and a second piezoelectric element), and the third member and the first member sandwich a plurality of piezoelectric elements (in a narrow sense, a third piezoelectric element and a fourth piezoelectric element) different from the plurality of piezoelectric elements sandwiched by the second member and the first member.
    Type: Application
    Filed: October 20, 2015
    Publication date: April 21, 2016
    Inventor: Mitsuhiro INAZUMI
  • Patent number: 9317749
    Abstract: A collision detection system includes a processing section, a drawing section, and a depth buffer. Depth information of an object is set to the depth buffer as depth map information. The drawing section performs a first drawing process of performing a depth test, and drawing a primitive surface on a reverse side when viewed from a predetermined viewpoint out of primitive surfaces constituting a collision detection target object with reference to the depth buffer. Further, the drawing section performs a second drawing process of drawing the primitive surface on the reverse side when viewed from a predetermined viewpoint out of the primitive surfaces constituting the collision detection target object without performing the depth test. The processing section determines whether or not the collision detection target object collides with the object on the target side based on the result of the first drawing process and the second drawing process.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: April 19, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Mitsuhiro Inazumi
  • Publication number: 20150375392
    Abstract: A control system includes a force sensor that has a mechanical mechanism (e.g., an end effector) and N (N is an integer equal to or more than two) triaxial force sensor units, acquires unit output values to which values resulting from the mechanical mechanism have been added from the respective triaxial force sensor units of the N triaxial force sensor units, and outputs force sense values based on the unit output values, a force sense value corrector that corrects the force sense values based on the force sense values output by the force sensor, and a controller that performs control of mechanical equipment (e.g., a robot) including the mechanical mechanism based on the force sense values corrected in the force sense value corrector.
    Type: Application
    Filed: September 4, 2015
    Publication date: December 31, 2015
    Inventor: Mitsuhiro INAZUMI
  • Patent number: 9149930
    Abstract: A control system includes a force sensor that has a mechanical mechanism (e.g., an end effector) and N (N is an integer equal to or more than two) triaxial force sensor units, acquires unit output values to which values resulting from the mechanical mechanism have been added from the respective triaxial force sensor units of the N triaxial force sensor units, and outputs force sense values based on the unit output values, a force sense value corrector that corrects the force sense values based on the force sense values output by the force sensor, and a controller that performs control of mechanical equipment (e.g., a robot) including the mechanical mechanism based on the force sense values corrected in the force sense value corrector.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: October 6, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Mitsuhiro Inazumi
  • Publication number: 20150231787
    Abstract: A robot controller includes a force control unit that outputs a correction value of a target track of a robot based on a detected sensor value acquired from a force sensor, a target value output unit that obtains a target value by performing correction processing on the target track based on the correction value and outputs the obtained target value, and a robot control unit that performs feedback control of the robot based on the target value. Further, the force control unit performs first force control when an external force direction indicated by the detected sensor value is a first direction, and performs second force control different from the first force control when the external force direction is a second direction opposite to the first direction.
    Type: Application
    Filed: May 7, 2015
    Publication date: August 20, 2015
    Inventor: Mitsuhiro INAZUMI