Patents by Inventor Kiyoshi Takagi

Kiyoshi Takagi 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: 20230411068
    Abstract: An inductor includes: an exterior member having a bottom surface and a side surface; and an electric conductive member partially covered by the exterior member. The electric conductive member includes a coil portion covered by the exterior member; lead portions connected to both ends of the coil portion, extending toward the bottom surface, and covered by the exterior member; and terminal electrodes connected to the lead portions and exposed from the bottom surface. The side surface includes recesses recessed inward of the exterior member from the side surface and connected to the bottom surface. The terminal electrodes extend along the bottom surface toward the recesses, are bent from the bottom surface toward the recesses, and housed therein. At least a part of each lead portion is opposite to the recess. Each lead portion has a thickness smaller than a diameter or a thickness of a wire of the coil portion.
    Type: Application
    Filed: October 12, 2021
    Publication date: December 21, 2023
    Inventors: Kiyoshi TAKAGI, Masahiro ENOMOTO, Hiroshi TOMITA
  • Patent number: 11839973
    Abstract: A kinematic model arithmetic portion calculates a coordinate value (ze1 (?e)) as distance information indicating the distance between a member that serves as a reference surface for the curve shape of a curvable portion and a member in the curvable portion that is closest to the reference surface. A switch determination unit determines based on the coordinate value whether to drive a wire for driving the curvable portion by a drive displacement calculated for the wire along with the coordinate value by the kinematic model arithmetic portion.
    Type: Grant
    Filed: July 9, 2021
    Date of Patent: December 12, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Kiyoshi Takagi
  • Patent number: 11685046
    Abstract: A continuum robot having at least two independently manipulateable bendable section for advancing the robot through a passage, without contacting fragile elements within the passage, wherein the robot incorporates control algorithms that enable the continuum robot to operate and advance into the passage, as well as the systems and procedures associated with the continuum robot and said functionality.
    Type: Grant
    Filed: April 16, 2021
    Date of Patent: June 27, 2023
    Assignee: Canon U.S.A., Inc.
    Inventors: Kiyoshi Takagi, Yusuke Tanaka, Takahisa Kato, Hitoshi Nakamura
  • Publication number: 20230131269
    Abstract: An object is to provide a mechanism that can ensure safe operation of a continuum robot. A block FTL calculates a target bending angle ?fFTL and a target rotational angle ?fFTL of a following bending section on the basis of a target bending angle ?lt and a target rotational angle ?lt of a distal-most bending section and a displacement of a base. A switch unit 330 selects the target bending angle ?fFTL and the target rotational angle ?fFTL of the following bending section obtained from the block FTL or a target bending angle ?lf and a target rotational angle ?lf of the following bending section obtained from a block Pl corresponding to following operating means. A kinematic computing unit 340 computes, on the basis of the target bending angle and the target rotational angle, a drive displacement by which a driving unit drives a wire in the following bending section.
    Type: Application
    Filed: December 20, 2022
    Publication date: April 27, 2023
    Inventor: Kiyoshi Takagi
  • Publication number: 20230114672
    Abstract: In a wire-driven continuum robot, in accordance with a profile of a first bending angle regarding a bending angle of a follow-up bending section that corresponds to a forward movement of a continuum robot, and is set in accordance with an input first target bending angle of a distal bending section, a bending angle of the following-up bending section is controlled to reach the first target bending angle. Before a movement amount of a forward movement reaches a first movement amount, the control is performed as follows. More specifically, a profile of a second bending angle that is different from the profile of the first bending angle is set, and by a further forward movement of the continuum robot, a bending angle of the following-up bending section reaches the second target bending angle in accordance with the profile of the second bending angle.
    Type: Application
    Filed: December 14, 2022
    Publication date: April 13, 2023
    Inventor: KIYOSHI TAKAGI
  • Publication number: 20220402130
    Abstract: A control system for a continuum robot including at least one curvable unit driven by a wire and configured to be curvable, and a driving unit driving the wire includes: a position control unit performing control so that an error between a target displacement of push-pull driving of the wire by the driving unit and a displacement of a wire holding mechanism holding the wire obtained from a continuum robot is compensated; a force control unit performing control so that an error between a target generated force corresponding to a target tension of the wire output from the position control unit and a generated force corresponding to a tension of the wire obtained from the continuum robot is compensated; and wherein a first loop control system including the force control unit and a second loop control system including the position control unit.
    Type: Application
    Filed: August 17, 2022
    Publication date: December 22, 2022
    Inventor: Kiyoshi Takagi
  • Patent number: 11531726
    Abstract: A puncture planning apparatus has: a simulation unit that simulates movement of an organ and a puncture needle by simulation using an organ model; and a planning unit that plans, based on the simulation result, how to move the puncture needle when an actual organ is punctured. The simulation unit executes a plurality of times of the simulation of an operation to advance the puncture needle while correcting an angle of the puncture needle so as to follow the movement of the target segment due to deformation of the organ, conditions of an advancement speed of the puncture needle are changed for each of the plurality times of the simulation, and the planning unit performs planning using the best simulation result out of the plurality of simulation results acquired under different conditions of the advancement speed.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: December 20, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Kiyoshi Takagi
  • Patent number: 11465289
    Abstract: A control apparatus for a continuum robot including a curved portion that is curved by driving a wire with a driving mechanism includes an image DB/torsional-amount acquisition unit that obtains the torsional amount of the continuum robot and a kinematic operation unit that sets the driving displacement amount of the wire driven by the driving mechanism on the basis of the torsional amount obtained by the image DB/torsional-amount acquisition unit.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: October 11, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Fumitaro Masaki, Kiyoshi Takagi, Yusuke Tanaka
  • Patent number: 11331797
    Abstract: A continuum robot includes a curvable first curvable portion, a curvable second curvable portion provided adjacent to the first curvable portion, a first wire connected to the first curvable portion, a second wire connected to the second curvable portion, and a control unit which controls curves of the first curvable portion and the second curvable portion by controlling driving of the first wire and the second wire. The control unit controls driving of the first wire and the second wire on the basis of a kinematic model in consideration of a curve of the second curvable portion accompanying driving the first wire and a curve of the first curvable portion accompanying driving of the second wire. Alternatively, the control unit controls driving of the first wire and the second wire so that a curve target value of the first curvable portion is achieved by the sum of curved amounts of the first curvable portion and the second curvable portion.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: May 17, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kiyoshi Takagi
  • Patent number: 11292123
    Abstract: To provide a technology of reducing a difference with respect to a target position of a curvable portion of a continuum robot which is to move forward substantially along a trajectory including a branched trajectory and a space. A continuum robot includes a plurality of curvable portions separately driven by wires, and control units which control positions of a plurality of curvable portions in accordance with a kinematic model. A modification value for modifying the kinematic model based on a target position and a measured position about each of the cases in which the plurality of curvable portions take a plurality of positions having at least one intersection is calculated. Modification uses a modification result in at least one of the plurality of positions as an initial value to modify the kinematic model in another position, and synthesizes the plurality of modification values.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: April 5, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kiyoshi Takagi
  • Patent number: 11278366
    Abstract: The present application relates to a flexible manipulator including at least one flexible member (bend) controlled by an input device in the form of a joystick. Specifically, to prevent the flexible manipulator inserted into a narrow space from contacting surrounding objects, the flexible manipulator according to the present invention is configured to maintain the shape when the operator releases the joystick. However, when the flexible manipulator is shaped to be at a target position and subsequently needs to be returned to the original shape, the operator manipulates the joystick using complicated and time consuming manipulation techniques. A control device in communication with the flexible manipulator is configured to allow the operator to select an input method for maintaining the shape of the flexible manipulator after the joystick is released. In addition, an input method for returning the flexible manipulator to the original shape may be selected.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: March 22, 2022
    Assignee: Canon U.S.A., Inc.
    Inventors: Hidekazu Kose, Kiyoshi Takagi
  • Publication number: 20210402592
    Abstract: A kinematic model arithmetic portion calculates a coordinate value (ze1 (?e)) as distance information indicating the distance between a member that serves as a reference surface for the curve shape of a curvable portion and a member in the curvable portion that is closest to the reference surface. A switch determination unit determines based on the coordinate value whether to drive a wire for driving the curvable portion by a drive displacement calculated for the wire along with the coordinate value by the kinematic model arithmetic portion.
    Type: Application
    Filed: July 9, 2021
    Publication date: December 30, 2021
    Inventor: Kiyoshi Takagi
  • Publication number: 20210362323
    Abstract: A wire-driven manipulator including a driver, a first deforming section including a first distal member, a plurality of first guide members, and a plurality of first wires, and a second deforming section provided between the first deforming section and the driver with the second deforming section including a second distal member, a plurality of second guide members, and a plurality of second wires. The plurality of first wires are fixed to the first distal member, and at least one of the plurality of first wires is further fixed to the plurality of first guide members and other wires of the plurality of the first wires are slidable with respect to the plurality of first guide members. The plurality of second wires are fixed to the second distal member, and at least one of the plurality of second wires is further fixed to the plurality of second guide members and the other wires of the plurality of the first wires are slidable with respect to the plurality of second guide members.
    Type: Application
    Filed: August 6, 2021
    Publication date: November 25, 2021
    Inventors: Yusuke Tanaka, Kiyoshi Takagi
  • Patent number: 11103992
    Abstract: A wire-driven manipulator including a driver, a first deforming section including a first distal member, a plurality of first guide members, and a plurality of first wires, and a second deforming section provided between the first deforming section and the driver with the second deforming section including a second distal member, a plurality of second guide members, and a plurality of second wires. The plurality of first wires are fixed to the first distal member, and at least one of the plurality of first wires is further fixed to the plurality of first guide members and other wires of the plurality of the first wires are slidable with respect to the plurality of first guide members. The plurality of second wires are fixed to the second distal member, and at least one of the plurality of second wires is further fixed to the plurality of second guide members and the other wires of the plurality of the first wires are slidable with respect to the plurality of second guide members.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: August 31, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yusuke Tanaka, Kiyoshi Takagi
  • Patent number: 11096552
    Abstract: The present invention provides a method and an apparatus for controlling a flexible manipulator including a plurality of bendable mechanisms via a control apparatus. The control apparatus includes a drive-mode selecting unit allows for the selection of a movement mode which may provide a bending movement, an angled view movement, or a remote center movement.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: August 24, 2021
    Assignees: Canon U.S.A., Inc., The Brigham and Women's Hospital Inc.
    Inventors: Nobuhiko Hata, Takahisa Kato, Kiyoshi Takagi, Hidekazu Kose
  • Patent number: 11084166
    Abstract: A kinematic model arithmetic portion calculates a coordinate value (ze1 (?e)) as distance information indicating the distance between a member that serves as a reference surface for the curve shape of a curvable portion and a member in the curvable portion that is closest to the reference surface. A switch determination unit determines based on the coordinate value whether to drive a wire for driving the curvable portion by a drive displacement calculated for the wire along with the coordinate value by the kinematic model arithmetic portion.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: August 10, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Kiyoshi Takagi
  • Publication number: 20210229277
    Abstract: A continuum robot having at least two independently manipulateable bendable section for advancing the robot through a passage, without contacting fragile elements within the passage, wherein the robot incorporates control algorithms that enable the continuum robot to operate and advance into the passage, as well as the systems and procedures associated with the continuum robot and said functionality.
    Type: Application
    Filed: April 16, 2021
    Publication date: July 29, 2021
    Inventors: Kiyoshi Takagi, Yusuke Tanaka, Takahisa Kato, Hitoshi Nakamura
  • Patent number: 11051892
    Abstract: An apparatus including a tendon-driven device such as an endoscope comprising a bendable body, a tendon attached to and extending a length of said body, and an actuator that will actuate said tendon based on a control signal from a controller. The controller is configured to send said control signal to said actuator and comprises a forward-kinematic-mapping unit that estimates an angular displacement, wherein the kinematic-mapping unit is configured for: providing a tension value of the tendon to obtain a desired angular displacement wherein the tension has a nonlinear relationship with the desired angular displacement based on information of friction where the tension is greater that would be calculated without including the effect of friction. The friction coefficient may be determined as it changes over time.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: July 6, 2021
    Assignees: Canon U.S.A., Inc., The Brigham and Women's Hospital, Inc.
    Inventors: Nobuhiko Hata, Takahisa Kato, Ichiro Okumura, Kiyoshi Takagi, Hidekazu Kose
  • Publication number: 20210146539
    Abstract: The present invention provides a mechanism which can avoid narrowing of a range in which a continuum robot can be driven and suppress damage to the continuum robot and an object. A continuum robot control apparatus controlling an operation of a continuum robot having a bendable portion bending in response to driving of at least some of a plurality of wires includes an external force estimating unit configured to estimate an external force applied to the bendable portion based on compressive/tensile forces applied to two or more wires of the plurality of wires, and a driving control unit configured to control driving of the wires to be driven based on the external force estimated by the external force estimating unit.
    Type: Application
    Filed: March 15, 2019
    Publication date: May 20, 2021
    Inventors: Yusuke Tanaka, Kiyoshi Takagi
  • Patent number: 11007641
    Abstract: A continuum robot having at least two independently manipulatable bendable section for advancing the robot through a passage, without contacting fragile elements within the passage, wherein the robot incorporates control algorithms that enable the continuum robot to operate and advance into the passage, as well as the systems and procedures associated with the continuum robot and said functionality.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: May 18, 2021
    Assignee: Canon U.S.A., Inc.
    Inventors: Kiyoshi Takagi, Yusuke Tanaka, Takahisa Kato, Hitoshi Nakamura