Patents by Inventor Kenji Shibata

Kenji Shibata 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: 11367826
    Abstract: There is provided a piezoelectric laminate, including: a substrate; and a piezoelectric film formed on the substrate, wherein the piezoelectric film is a film containing an alkali niobium oxide of a perovskite structure represented by a composition formula of (K1-xNax)NbO3 (0<x<1), and having Young's modulus of less than 100 GPa.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: June 21, 2022
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Kenji Shibata, Kazutoshi Watanabe, Fumimasa Horikiri
  • Publication number: 20220185367
    Abstract: A steering control device includes a first calculator configured to calculate a first axial force, a second calculator, and a third calculator configured to calculate a third axial force. The third calculator is configured to, when a specific situation occurs in which a current of a turning motor has to be limited, decrease a reflection degree of the first axial force in the third axial force and increase a reflection degree of the second axial force in the third axial force.
    Type: Application
    Filed: December 9, 2021
    Publication date: June 16, 2022
    Applicants: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Isao NAMIKAWA, Satoshi MATSUDA, Tomoyuki IIDA, Masaharu YAMASHITA, Kenji SHIBATA
  • Publication number: 20220153343
    Abstract: A steer-by-wire steering system for a vehicle, including: an operating device including a steering operating member, a counterforce applying mechanism configured to apply, to the steering operating member, an operation counterforce by a counterforce motor, and an operating controller configured to control the operation counterforce; a steering device including a steering actuator configured to steer a wheel by a steering motor and a steering controller configured to control an amount of steering of the wheel by the steering actuator; and a communication line communicably connecting the operating controller and the steering controller, wherein the steering controller is configured to: determine a status code based on a status of the steering device; and transmit the status code to the operating controller via the communication line; and wherein the operating controller is configured to change a magnitude of the operation counterforce in accordance with the status code received by the operating controller.
    Type: Application
    Filed: November 4, 2021
    Publication date: May 19, 2022
    Applicants: Toyota Jidosha Kabushiki Kaisha, JTEKT CORPORATION
    Inventors: Tomoyuki IIDA, Masaharu Yamashita, Kenji Shibata, Yuji Fujita, Takashi Kodera, Isao Namikawa, Satoshi Matsuda
  • Patent number: 11334842
    Abstract: An automatic estimation method comprises a first step (STEP 01) of introducing a shape data on an item, a second step (STEP 02) of recognizing a shape of the item on the basis of the shape data, a third step (STEP 06) of acquiring a manufacturing condition which can be selected on the basis of the recognized shape, a fourth step (STEP 08) of displaying the manufacturing condition and corresponding price and delivery time, and a fifth step (STEP 09, STEP 10) of updating the displayed price and delivery time depending on change of the manufacturing condition.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: May 17, 2022
    Assignee: Misumi Corporation
    Inventors: Takaaki Wada, Mitsunobu Yoshida, Kenji Nakagawa, Atsushi Shibata
  • Patent number: 11294521
    Abstract: In a touch sensor, a wiring board has signal line portions electrically connected to a first sensor terminal of a first sensor board at a first end; a ground portion electrically insulated from the signal line portions; and an insulating layer covering the ground portion. The insulating layer has a plurality of through holes for passing through the insulating layer in a thickness direction of the wiring board and exposing the ground portion therethrough. The plurality of through holes are arranged at intervals. A line segment connecting two through holes of the plurality of through holes intersects the plurality of signal line portions.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: April 5, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hiromitsu Niwa, Kenji Shibata, Akifumi Hashimoto
  • Publication number: 20220089217
    Abstract: A steering control device includes a control unit configured to control at least an operation of a steering-side motor. The control unit is configured to calculate a target reaction torque; calculate a difference axial force that is used to limit steering for turning the turning wheels in a predetermined direction, the difference axial force being reflected in the target reaction torque; and set a reference angle to one of a steering angle and a turning angle, set a converted angle to an angle obtained by converting another of the steering angle and the turning angle according to a steering angle ratio, and calculate the difference axial force based on a difference between the reference angle and the converted angle.
    Type: Application
    Filed: September 22, 2021
    Publication date: March 24, 2022
    Applicants: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Isao NAMIKAWA, Satoshi MATSUDA, Tomoyuki IIDA, Yoshio KUDO, Masaharu YAMASHITA, Kenji SHIBATA
  • Publication number: 20220046831
    Abstract: A power conversion device includes a semiconductor module, a cooling device, a case, which accommodates the semiconductor module and the cooling device, a connector, which is connected to an inlet pipe, which is a refrigerant flow pipe of the cooling device, and a sealing member, which seals between the inlet pipe and the connector. The connector includes a pipe portion, which communicates with the inlet pipe, and a flange portion, which is secured to the case. The pipe portion and the flange portion are joined to each other with the pipe portion located in an insertion hole of the flange portion.
    Type: Application
    Filed: October 26, 2021
    Publication date: February 10, 2022
    Applicant: DENSO CORPORATION
    Inventors: Kazuya TAKEUCHI, Kenji SHIBATA, Yoshihito TAKAHASHI
  • Patent number: 11214303
    Abstract: A vehicle of a steer-by-wire type includes: a turning device that turns a wheel by actuating a turning motor; and a reaction torque generation device that applies a reaction torque to a steering wheel by actuating a reaction motor. A control device for the vehicle is configured to control turning of the wheel by controlling the turning motor and to control the reaction torque by controlling the reaction motor, according to rotation of the steering wheel. When a power output limiting condition is satisfied, the control device executes not only power output limiting processing that limits a power output of the turning motor but also reaction torque increasing processing. In the reaction torque increasing processing, the control device controls the reaction torque to make the steering wheel harder to rotate as compared with a case where the power output limiting processing is not executed.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: January 4, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kenji Shibata, Koichi Itoh, Takafumi Sato
  • Publication number: 20210394821
    Abstract: A steering system includes a steering operation shaft in which power transmission to and from a steering wheel is disabled and that steers a steered wheel of a vehicle, a steering operation motor that generates a steering operation force that is a torque applied to the steering operation shaft so as to steer the steered wheel, and a control device that controls the steering operation motor. When a rotation position of the steering wheel is different from a rotation position corresponding to a steered position of the steered wheel, the control device executes a process for correcting the steered position of the steered wheel to a position corresponding to the rotation position of the steering wheel through the steering operation motor.
    Type: Application
    Filed: June 14, 2021
    Publication date: December 23, 2021
    Applicants: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yusuke KAKIMOTO, Takashi KODERA, Kenji SHIBATA, Takafumi SATO
  • Publication number: 20210394826
    Abstract: A steering system includes a steering shaft; a reaction motor; and a control unit configured to control the reaction motor. The control unit has a function of performing a correction process of rotating the steering wheel using the reaction motor such that a displacement in a rotational position of the steering wheel with respect to a correct rotational position corresponding to a turning position of the turning wheels decreases when a power supply of the vehicle is turned on and the rotational position of the steering wheel is different from the correct rotational position. The control unit is configured to perform the correction process when the displacement is equal to or greater than a predetermined permissible value and not to perform the correction process when the displacement is less than the permissible value.
    Type: Application
    Filed: June 14, 2021
    Publication date: December 23, 2021
    Applicants: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yusuke KAKIMOTO, Yoshiyuki UCHINO, Kenji SHIBATA, Takafumi SATO
  • Publication number: 20210394820
    Abstract: A steering system includes a steering shaft that rotates along with an operation of a steering wheel; a motor configured to generate a torque that is applied to the steering shaft; and a control unit configured to control the motor. The control unit is configured to control the motor such that a rotation speed of the steering wheel decreases gradually to zero when automatic rotation of the steering wheel is stopped, in a case where the steering wheel is automatically rotated as an adjustment process of adjusting a rotational position of the steering wheel.
    Type: Application
    Filed: June 14, 2021
    Publication date: December 23, 2021
    Applicants: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yusuke KAKIMOTO, Yoshiyuki UCHINO, Kenji SHIBATA, Takafumi SATO
  • Publication number: 20210394824
    Abstract: A steering device includes a steering shaft, a motor, a stopper mechanism, and a controller. The controller is configured to execute a first process and a second process when a determined condition is established. The first process includes causing the steering wheel to operate to a first operation end through control of the motor and thereafter operate in reverse to a second operation end. The second process includes computing a neutral position of the steering wheel based on a rotational angle of the motor at a time when reverse operation of the steering wheel is started and at a time when the reverse operation of the steering wheel is ended.
    Type: Application
    Filed: June 7, 2021
    Publication date: December 23, 2021
    Applicant: JTEKT CORPORATION
    Inventors: Yusuke KAKIMOTO, Yoshiyuki UCHINO, Kenji SHIBATA, Takafumi SATO
  • Publication number: 20210394825
    Abstract: A steering system includes a steering shaft; a motor configured to generate a torque applied to the steering shaft; and a control unit configured to control the motor. The control unit has a function of performing steering angle feedback control for causing a steering angle that is a rotation angle of a steering wheel to reach a target steering angle that is set based on a point of view of adjusting a rotational position of the steering wheel, as an adjustment process of adjusting the rotational position of the steering wheel. The control unit is configured to set a limit value for limiting a change range of the target steering angle with respect to the steering angle at each moment in a period in which automatic rotation of the steering wheel is hindered in a case where the automatic rotation is hindered while the adjustment process is being performed.
    Type: Application
    Filed: June 14, 2021
    Publication date: December 23, 2021
    Applicants: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yusuke KAKIMOTO, Yoshiyuki UCHINO, Kenji SHIBATA, Takafumi SATO
  • Publication number: 20210359195
    Abstract: There is provided a laminated substrate with a piezoelectric thin film, comprising: a substrate; an electrode film formed on the substrate; and a piezoelectric thin film formed on the electrode film, wherein the piezoelectric thin film is made of an alkali niobium oxide represented by a composition formula of (K1-xNax)NbO3 (0<x<1), having a perovskite structure, and oriented preferentially in (001) plane direction, and contains a metallic element selected from a group consisting of Mn and Cu at a concentration of 0.2 at % or more and 0.6 at % or less.
    Type: Application
    Filed: July 28, 2021
    Publication date: November 18, 2021
    Inventors: Kenji SHIBATA, Kazutoshi WATANABE, Fumimasa HORIKIRI
  • Publication number: 20210309290
    Abstract: A steering control device includes control circuitry configured to perform synchronization control.
    Type: Application
    Filed: March 31, 2021
    Publication date: October 7, 2021
    Applicant: JTEKT CORPORATION
    Inventors: Yoshiyuki UCHINO, Yusuke KAKIMOTO, Koji ANRAKU, Isao NAMIKAWA, Kenji SHIBATA, Takafumi SATO
  • Publication number: 20210299813
    Abstract: An electric power tool disclosed herein may include a motor; a power transmission mechanism connected to the motor; a housing that houses the motor and the power transmission mechanism; a tip tool holder connected to the power transmission mechanism; a cover covering the tip tool holder partially; a first locking mechanism configured to switch between a first locking state and a first unlocked state; and a second locking mechanism configured to switch between a second locking state and a second unlocked state. In the electric power tool, the cover may become detachable from the housing when the user performs the second unlocking operation on the second locking mechanism and the first unlocking operation on the first locking mechanism.
    Type: Application
    Filed: August 1, 2019
    Publication date: September 30, 2021
    Applicant: MAKITA CORPORATION
    Inventors: Kenichi TABUSHI, Akira MIZUTANI, Ken GOTO, Kenji SHIBATA, Hideharu MUTO, Satoshi NINAGAWA, Junya ISHIKAWA, Takafumi KOTSUJI
  • Patent number: 11107971
    Abstract: There is provided a laminated substrate with a piezoelectric thin film, comprising: a substrate; an electrode film formed on the substrate; and a piezoelectric thin film formed on the electrode film, wherein the piezoelectric thin film is made of an alkali niobium oxide represented by a composition formula of (K1?xNax) NbO3 (0<x<1), having a perovskite structure, and oriented preferentially in (001) plane direction, and contains a metallic element selected from a group consisting of Mn and Cu at a concentration of 0.2 at % or more and 0.6 at % or less.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: August 31, 2021
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Kenji Shibata, Kazutoshi Watanabe, Fumimasa Horikiri
  • Publication number: 20210048923
    Abstract: In a touch sensor, a wiring board has signal line portions electrically connected to a first sensor terminal of a first sensor board at a first end; a ground portion electrically insulated from the signal line portions; and an insulating layer covering the ground portion. The insulating layer has a plurality of through holes for passing through the insulating layer in a thickness direction of the wiring board and exposing the ground portion therethrough. The plurality of through holes are arranged at intervals. A line segment connecting two through holes of the plurality of through holes intersects the plurality of signal line portions.
    Type: Application
    Filed: January 17, 2019
    Publication date: February 18, 2021
    Inventors: Hiromitsu NIWA, Kenji SHIBATA, Akifumi HASHIMOTO
  • Publication number: 20210036213
    Abstract: There is provided a piezoelectric stack, including: a substrate; an electrode film; and a piezoelectric film which is comprised of alkali niobium oxide of a perovskite structure represented by a composition formula of (K1-xNax)NbO3 (0<x<1), wherein the piezoelectric film comprises crystals having a grain size with a standard deviation of 0.42 ?m or less.
    Type: Application
    Filed: July 30, 2020
    Publication date: February 4, 2021
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Kenji SHIBATA, Kazutoshi WATANABE, Toshiaki KURODA
  • Publication number: 20210036214
    Abstract: There is provided a piezoelectric stack, including: a substrate; an electrode film; and a piezoelectric film which is comprised of alkali niobium oxide of a perovskite structure represented by a composition formula of (K1-xNax)NbO3 (0<x<1), wherein the piezoelectric film comprises crystals having a grain size with a standard deviation of more than 0.42 ?m.
    Type: Application
    Filed: July 30, 2020
    Publication date: February 4, 2021
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Kenji SHIBATA, Kazutoshi WATANABE, Toshiaki KURODA