Patents by Inventor Masaki MOTOYOSHI

Masaki MOTOYOSHI 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).

  • Publication number: 20170120444
    Abstract: A robot includes a first arm rotatable about a first rotation axis, a second arm provided to be rotatable about a second rotation axis in a axis direction different from a axis direction of the first rotation axis, and inertial sensors, wherein the first arm and the second arm can overlap as seen from the axis direction of the second rotation axis.
    Type: Application
    Filed: November 1, 2016
    Publication date: May 4, 2017
    Inventors: Masaki MOTOYOSHI, Ryosuke IMAI
  • Publication number: 20170080577
    Abstract: A robot includes n arms, n drive units that respectively drive the n arms, n position detecting units that respectively detect positions of the n arms, and L signal lines through which signals detected by the n position detecting units flow. When the number of control units that control the driving of the drive units based on the signals detected by the position detecting units is m, the robot satisfies the relations of 2?L<n and 2?m<n.
    Type: Application
    Filed: September 16, 2016
    Publication date: March 23, 2017
    Inventor: Masaki MOTOYOSHI
  • Publication number: 20170080572
    Abstract: A robotic device includes a first calculation section adapted to calculate a first angular velocity of a first arm operating due to a first actuator provided with a first angle sensor based on rotational angle detection data of the first angle sensor of the first actuator, a second calculation section adapted to calculate a second angular velocity of the first arm taking an arm linkage device as an axis based on angular velocity detection data of an inertial sensor provided to the first arm linked via the arm linkage device including the first actuator, which is a calculation object of the first calculation section, and a third calculation section adapted to calculate a torsional angular velocity between the first actuator and the first arm with a low-frequency component eliminated.
    Type: Application
    Filed: December 6, 2016
    Publication date: March 23, 2017
    Inventor: Masaki MOTOYOSHI
  • Publication number: 20170066129
    Abstract: A robot includes an nth (n is an integer equal to or more than one) arm rotatable about an nth rotation axis, and an (n+1)th arm provided on the nth arm to be rotatable about an (n+1)th rotation axis in an axis direction different from an axis direction of the nth rotation axis, wherein a length of the nth arm is longer than a length of the (n+1)th arm, the nth arm and the (n+1)th arm can overlap as seen from the axis direction of the (n+1)th rotation axis, and a shortest time taken for a second action of rotating the (n+1)th arm from a first attitude to a first angle is shorter than a shortest time taken for a first action of rotating the nth arm from the first attitude to the first angle.
    Type: Application
    Filed: September 6, 2016
    Publication date: March 9, 2017
    Inventors: Masaki MOTOYOSHI, Ryosuke IMAI, Shunsuke TOSHIMITSU
  • Patent number: 9568075
    Abstract: A robot includes a base; a trunk linked to the base; a multi-joint robot arm rotatably linked to the trunk; and an elevating mechanism capable of bringing the trunk to a low position and a high position higher than the low position, and a time taken when a tip of the multi-joint robot arm is moved by a predetermined distance when the trunk is at the high position is longer than a time taken when the tip of the multi-joint robot arm is moved by a predetermined distance when the trunk is at the low position.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: February 14, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Akihiro Gomi, Masaki Motoyoshi
  • 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: 9545721
    Abstract: A robotic device includes a first calculation section adapted to calculate a first angular velocity of a first arm operating due to a first actuator provided with a first angle sensor based on rotational angle detection data of the first angle sensor of the first actuator, a second calculation section adapted to calculate a second angular velocity of the first arm taking an arm linkage device as an axis based on angular velocity detection data of an inertial sensor provided to the first arm linked via the arm linkage device including the first actuator, which is a calculation object of the first calculation section, and a third calculation section adapted to calculate a torsional angular velocity between the first actuator and the first arm with a low-frequency component eliminated.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: January 17, 2017
    Assignee: Seiko Epson Corporation
    Inventor: Masaki Motoyoshi
  • Publication number: 20160354925
    Abstract: A robot control apparatus that controls a robot including a manipulator, a force detector provided in the manipulator, and an actuator that drives the manipulator based on a target position, includes a display control unit that displays a motion position of the manipulator derived based on a target force and an output of the force detector and the target position on a screen.
    Type: Application
    Filed: June 2, 2016
    Publication date: December 8, 2016
    Inventors: Yasuhiro SHIMODAIRA, Masaki MOTOYOSHI, Kaoru TAKEUCHI, Katsuji IGARASHI
  • Publication number: 20160318183
    Abstract: A robot control device controls the operation of a robot including a base; a robot arm that has at least three links, at least three joint portions, and at least three drive sources; an inertia sensor; and at least three angle sensors. The robot control device includes a first coordinate system vibration calculation unit; a second coordinate system vibration calculation unit; a weighting unit; a third coordinate system vibration calculation unit; a correction value calculation unit that obtains correction values for correcting the respective drive commands of the drive sources based on vibration information in a third coordinate system, and the respective detected results of the angle sensors; and a drive source control unit that controls the operations of the drive sources based on the respective drive commands of the drive sources, the correction values, and the respective detected results of the angle sensors.
    Type: Application
    Filed: July 11, 2016
    Publication date: November 3, 2016
    Inventor: Masaki MOTOYOSHI
  • Publication number: 20160318186
    Abstract: A robot includes a base, first and second arms, first and second drive sources, first and second inertia sensors, and first and second angle sensors. A rotation axis of the first arm and a rotation axis of the second arm are orthogonal to each other. The first inertia sensor is installed at the first arm, and the second inertia sensor is installed at the second arm. The first angle sensor is installed at the first drive source, and the second angle sensor is installed at the second drive source. Angular velocities obtained from the first inertia sensor and the first angle sensor are fed back to a first drive source control unit. Angular velocities obtained from the second inertia sensor and the second angle sensor are fed back to a second drive source control unit.
    Type: Application
    Filed: July 11, 2016
    Publication date: November 3, 2016
    Inventors: Akihiro GOMI, Akio NIU, Masaki MOTOYOSHI
  • Patent number: 9481088
    Abstract: A robot control device controls the operation of a robot including a trunk that is rotatable around an axis, first and second robot arms that are provided at the trunk and rotatable with respect to the trunk, and first, second, and third inertial sensors. In an operation in which the second robot arm is brought into a stationary state and the first robot arm is rotated around the axis from the stationary state and moved to a target position, the robot control device makes B/A<0.27 satisfied when a maximum value of the amplitude of the angular velocity of the trunk around the axis before the first robot arm reaches the target position is defined as A, and a maximum value of the amplitude of the angular velocity of the trunk around the axis after the first robot arm has reached the target position first is defined as B.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: November 1, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Akihiro Gomi, Masaki Motoyoshi
  • Publication number: 20160288327
    Abstract: In order to stabilize control of a driving section, a robot control apparatus includes a control section that acquires a driving position of the driving section that drives a robot and an operation force that is a force operating on the robot, and performs first control of the driving section based on the driving position and second control of the driving section based on the operation force; and a changing section that changes a size of servo stiffness of the robot that is realized by the control of the control section.
    Type: Application
    Filed: March 17, 2016
    Publication date: October 6, 2016
    Inventor: Masaki MOTOYOSHI
  • Publication number: 20160288332
    Abstract: A robot includes a force detector, and a drive part that changes a position relationship between a marker and an imaging part. In the case with calibration processing of specifying a coordinate relationship as a correspondence relationship between a reference coordinate system with reference to a position of the marker and a robot coordinate system as reference of control of the drive part based on images of the marker captured by the imaging part in a plurality of the position relationships, the drive part is controlled to have anisotropy based on the coordinate relationship and a detection value of the force detector.
    Type: Application
    Filed: March 10, 2016
    Publication date: October 6, 2016
    Inventors: Masaki MOTOYOSHI, Norio YOKOSHIMA
  • Publication number: 20160279792
    Abstract: In order to set control with a high degree of freedom while taking into account a time response waveform, a robot control apparatus includes a control section that acquires a driving position of a driving section that drives a robot and a detection value of an operation force operating on the robot detected by a force detector, and controls the driving section based on the detection value, a first setting value, and a second setting value; a first display section that displays a detection waveform that is a time response waveform of the detection value; a second display section that displays a storage waveform that is a time response waveform of the operation force stored in a storage medium in advance; and a receiving section that receives setting of at least the second setting value.
    Type: Application
    Filed: March 15, 2016
    Publication date: September 29, 2016
    Inventor: Masaki MOTOYOSHI
  • Patent number: 9452534
    Abstract: A robot includes a first horizontal arm coupled to a base, a second horizontal arm coupled to the base via the first horizontal arm, first and second motors adapted to rotate the respective arms, and first and second encoders adapted to calculate rotational angles and rotational velocities of the respective motors. A first motor control section subtracts first and second angular velocities based on the first and second encoders from a sensor angular velocity detected by an angular sensor, and controls the first motor so that a velocity measurement value obtained by adding a vibration velocity based on a vibration angular velocity as the subtraction result and a first rotational velocity becomes equal to a velocity command value.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: September 27, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Katsuji Igarashi, Masaki Motoyoshi
  • Publication number: 20160236348
    Abstract: A robot includes: an arm; a driving source that pivots the arm; an angle sensor that detects a pivot angle and outputs pivot angle information; an inertia sensor that is attached to the arm and outputs inertial force information; a control command generating unit that outputs a control command defining rotational operation of the arm; a control conversion determining unit that determines whether the inertial force information is used when the driving source is controlled; and an arm operation control unit that performs a first control based on the control command, the pivot angle information, and the inertial force information, if the control conversion determining unit determines that the inertial force information should be used, and performs a second control based on the control command and the pivot angle information, if the control conversion determining unit determines that the inertial force information should not be used.
    Type: Application
    Filed: April 28, 2016
    Publication date: August 18, 2016
    Inventors: Masaki MOTOYOSHI, Izumi IIDA
  • Patent number: 9415518
    Abstract: A robot control device controls the operation of a robot including a base; a robot arm that has at least three links, at least three joint portions, and at least three drive sources; an inertia sensor; and at least three angle sensors. The robot control device includes a first coordinate system vibration calculation unit; a second coordinate system vibration calculation unit; a weighting unit; a third coordinate system vibration calculation unit; a correction value calculation unit that obtains correction values for correcting the respective drive commands of the drive sources based on vibration information in a third coordinate system, and the respective detected results of the angle sensors; and a drive source control unit that controls the operations of the drive sources based on the respective drive commands of the drive sources, the correction values, and the respective detected results of the angle sensors.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: August 16, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Masaki Motoyoshi
  • Patent number: 9409293
    Abstract: A robot includes a base, first and second arms, first and second drive sources, first and second inertia sensors, and first and second angle sensors. A rotation axis of the first arm and a rotation axis of the second arm are orthogonal to each other. The first inertia sensor is installed at the first arm, and the second inertia sensor is installed at the second arm. The first angle sensor is installed at the first drive source, and the second angle sensor is installed at the second drive source. Angular velocities obtained from the first inertia sensor and the first angle sensor are fed back to a first drive source control unit. Angular velocities obtained from the second inertia sensor and the second angle sensor are fed back to a second drive source control unit.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: August 9, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Akihiro Gomi, Akio Niu, Masaki Motoyoshi
  • Publication number: 20160176047
    Abstract: A robot includes a first arm that rotates around the first axis, a second arm that rotates around a second axis in a direction different from the first axis, a third arm that rotates around a third axis parallel to the second axis, a first inertia sensor that is installed at the first arm, a second (a) inertia sensor that is installed at the third arm, first to third angle sensors, a posture detection unit that detects the posture of the third arm with the second arm as a reference and derives a feedback gain, and a second drive source control unit that feeds back a second correction component, which is obtained by multiplying a value, which is obtained by subtracting the angular velocity ?A2m and the angular velocity ?A3m from the angular velocity ?A3, by the feedback gain, and controls the second drive source.
    Type: Application
    Filed: March 2, 2016
    Publication date: June 23, 2016
    Inventors: Akihiro GOMI, Masaki MOTOYOSHI, Shunsuke TOSHIMITSU
  • Patent number: 9352464
    Abstract: A robot includes: an arm; a driving source that pivots the arm; an angle sensor that detects a pivot angle and outputs pivot angle information; an inertia sensor that is attached to the arm and outputs inertial force information; a control command generating unit that outputs a control command defining rotational operation of the arm; a control conversion determining unit that determines whether the inertial force information is used when the driving source is controlled; and an arm operation control unit that performs a first control based on the control command, the pivot angle information, and the inertial force information, if the control conversion determining unit determines that the inertial force information should be used, and performs a second control based on the control command and the pivot angle information, if the control conversion determining unit determines that the inertial force information should not be used.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: May 31, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Masaki Motoyoshi, Izumi Iida