Patents by Inventor Kazuto YOKOYAMA

Kazuto YOKOYAMA 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: 20230293249
    Abstract: There is provided an information processing device (300) including a control unit (324) that controls a medical arm (102) to autonomously operate using a first learning model generated by machine learning a plurality of state information concerning an operation of the medical arm labeled as an operation that should be avoided.
    Type: Application
    Filed: June 29, 2021
    Publication date: September 21, 2023
    Inventors: KAZUTO YOKOYAMA, YOHEI KURODA, TETSUHARU FUKUSHIMA, YUKI ITOTANI, KATSUFUMI SUGIMOTO
  • Publication number: 20230142404
    Abstract: Systems and methods can comprise or involve predicting future movement information for a medical articulating arm using a learned model generated based on learned previous movement information from a prior non-autonomous trajectory of the medical articulating arm performed in response to operator input and using current movement information for the medical articulating arm, generating control signaling to autonomously control movement of the medical articulating arm in accordance with the predicted future movement information for the medical articulating arm, and autonomously controlling the movement of the medical articulating arm in accordance with the predicted future movement information for the medical articulating arm based on the generated control signaling.
    Type: Application
    Filed: September 8, 2021
    Publication date: May 11, 2023
    Applicant: Sony Group Corporation
    Inventors: Yuka ARIKI, Masaru USUI, Daisuke NAGAO, Kazuto YOKOYAMA, Yohei KURODA
  • Publication number: 20230126611
    Abstract: To support easy arrangement of a robot, an information processing apparatus includes: a projection image generating section which generates a projection image that projects information specifying a range of motion of a target part of a medical arm onto the range of motion on the basis of first information regarding the range of motion and second information regarding a position and a posture of a projection device that projects an image in an operating room; and an output instruction section that outputs a projection instruction for the projection image to the projection device.
    Type: Application
    Filed: March 10, 2021
    Publication date: April 27, 2023
    Inventors: YUKI ITOTANI, TETSUHARU FUKUSHIMA, YOHEI KURODA, KAZUTO YOKOYAMA, KATSUFUMI SUGIMOTO
  • Publication number: 20220247242
    Abstract: A motor (31) includes a stator (313), a rotor (311), and a movable member (315). The stator (313) includes a back yoke (313a) that is annular and a plurality of teeth (313b) that protrude inward in a radial direction from an inner periphery of the back yoke (313a). The rotor (311) is provided on an inner peripheral side of the stator (313). The movable member (315) is a movable member provided along an outer peripheral surface of the back yoke (313a), and changes characteristics of magnetic flux flowing through the back yoke (313a) when the movable member (315) is moved.
    Type: Application
    Filed: June 18, 2020
    Publication date: August 4, 2022
    Inventor: KAZUTO YOKOYAMA
  • Publication number: 20210253196
    Abstract: A control device according to an embodiment of the present technology includes: an acquisition unit; a detection unit; and a control unit. The acquisition unit acquires external force information regarding an external force to be applied to a moving object including a drive source. The detection unit detects a human force and a resistance force on the basis of the acquired external force information, the human force causing the moving object to move, the resistance force being imposed on the moving object. The control unit calculates a first control value corresponding to the detected human force, and a second control value corresponding to the detected resistance force, and controls the drive source on the basis of the first and second control values.
    Type: Application
    Filed: April 22, 2019
    Publication date: August 19, 2021
    Inventor: KAZUTO YOKOYAMA
  • Patent number: 10870356
    Abstract: A vehicle speed control unit includes feedback control parts, the number of feedback control parts corresponding to the number of multiple motors, generating feedback command torques for the respective motors, on the basis of respective deviations between speed signals from speed sensors detecting revolution speeds of the multiple motors and feedback target vehicle-speed signal reshaped from the inputted target vehicle-speed signal by target vehicle-speed filters; a feedforward control part calculating a feedforward command torque for the vehicle as a whole, on the basis of the inputted target vehicle-speed signal; and a torque distribution part dividing the feedforward command torque into individual feedforward command torques for distribution to the respective motors, wherein the individual feedforward command torques are respectively added to the feedback command torques and, to control the respective motors.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: December 22, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kazuto Yokoyama, Masahiro Iezawa
  • Publication number: 20180264950
    Abstract: A vehicle speed control unit includes feedback control parts, the number of feedback control parts corresponding to the number of multiple motors, generating feedback command torques for the respective motors, on the basis of respective deviations between speed signals from speed sensors detecting revolution speeds of the multiple motors and feedback target vehicle-speed signal reshaped from the inputted target vehicle-speed signal by target vehicle-speed filters; a feedforward control part calculating a feedforward command torque for the vehicle as a whole, on the basis of the inputted target vehicle-speed signal; and a torque distribution part dividing the feedforward command torque into individual feedforward command torques for distribution to the respective motors, wherein the individual feedforward command torques are respectively added to the feedback command torques and, to control the respective motors.
    Type: Application
    Filed: September 12, 2016
    Publication date: September 20, 2018
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kazuto YOKOYAMA, Masahiro IEZAWA
  • Patent number: 9859836
    Abstract: By providing a configuration for calculating motor control constants to be set in a motor control apparatus automatically on the basis of a target response time constant obtained from a target response time constant input unit, waveform parameters obtained from a waveform parameter input unit, a normalized time constant obtained from a normalized time constant calculation unit, and a motor load inertia obtained from a motor load inertia input unit, it is possible to obtain a motor control constant calculation device that can determine appropriate motor control constants for obtaining a desired response characteristic by automatic calculation while avoiding variation and an increase in the number of steps due to differences in the abilities of users.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: January 2, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kazuto Yokoyama, Masahiro Iezawa, Keiichi Enoki, Yasufumi Ogawa, Kotaro Nakano
  • Publication number: 20170111004
    Abstract: By providing a configuration for calculating motor control constants to be set in a motor control apparatus automatically on the basis of a target response time constant obtained from a target response time constant input unit, waveform parameters obtained from a waveform parameter input unit, a normalized time constant obtained from a normalized time constant calculation unit, and a motor load inertia obtained from a motor load inertia input unit, it is possible to obtain a motor control constant calculation device that can determine appropriate motor control constants for obtaining a desired response characteristic by automatic calculation while avoiding variation and an increase in the number of steps due to differences in the abilities of users.
    Type: Application
    Filed: May 13, 2014
    Publication date: April 20, 2017
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kazuto YOKOYAMA, Masahiro IEZAWA, Keiichi ENOKI, Yasufumi OGAWA, Kotaro NAKANO