Patents by Inventor Yusuke Ohata

Yusuke Ohata 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: 20250050963
    Abstract: In an installation structure of an accelerator position sensor connected to an accelerator grip via an accelerator cable in a straddle-type vehicle, a seat is supported from a lower side of the straddle-type vehicle by a pair of seat rails, an air cleaner case is installed below the pair of seat rails, an outlet tube extends forward from the air cleaner case, an upper surface of the outlet tube is lower than an upper surface of the air cleaner case, and the accelerator position sensor is installed above the outlet tube between the pair of seat rails.
    Type: Application
    Filed: August 2, 2024
    Publication date: February 13, 2025
    Applicant: SUZUKI MOTOR CORPORATION
    Inventors: Shinichi YAMADA, Yusuke OHATA, Akihito FUKUI
  • Patent number: 12097911
    Abstract: Provided is a steering system capable of enhancing traveling stability when a vehicle drives straight and improving small-turn performance. The steering system includes: a first steering device; a second steering device including a mechanical section configured to individually steer each of left and right wheels by driving a steering actuator and a control section configured to control the steering actuator; and a vehicle information detection section configured to detect a velocity of the vehicle and a steering angle. The control section includes a turning angle control module configured to control the steering actuator pursuant to a predetermined rule in accordance with the velocity of the vehicle and the steering angle so as to control turning angles of the left and right wheels.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: September 24, 2024
    Assignee: NTN CORPORATION
    Inventors: Hirokazu Ooba, Norio Ishihara, Satoshi Utsunomiya, Yusuke Ohata
  • Patent number: 11851123
    Abstract: The steering function-equipped hub unit includes: a turning shaft-equipped hub bearing including an inner ring, an outer ring, and rolling elements in double rows interposed between the inner ring and the outer ring, the turning shaft-equipped hub bearing having a turning shaft extending in a vertical direction; a unit support member rotatably supporting the turning shaft-equipped hub bearing (15) about a turning axis of the turning shaft; and a steering actuator configured to rotationally drive the turning shaft-equipped hub bearing about the turning axis (A). The unit support member and the steering actuator include a flange and an end portion, respectively, to be removably fixed to a knuckle which is a chassis frame component of a vehicle.
    Type: Grant
    Filed: September 6, 2022
    Date of Patent: December 26, 2023
    Assignee: NTN CORPORATION
    Inventors: Hirokazu Ooba, Yusuke Ohata
  • Publication number: 20230356768
    Abstract: A hub unit with a steering function includes: a hub bearing that rotatably supports a wheel; a cylindrical turning shaft section extending from an outer ring thereabove and thereunder with the outer ring being located at an outer peripheral surface of an outer race of the hub bearing; a steering actuator that causes the hub bearing to rotate about an axis of the turning shaft section; a unit support member that rotatably supports the hub bearing about the axis on a vehicle body; and an arm section projecting from the outer ring rearward of a vehicle, with the actuator being coupled to the arm section. The actuator includes: an extensible and retractable assembly capable of providing extension or retraction in a direction perpendicular to the axis; and the extensible and retractable assembly is coupled to the arm section through a joint assembly providing two or more directions of freedom.
    Type: Application
    Filed: July 11, 2023
    Publication date: November 9, 2023
    Applicant: NTN CORPORATION
    Inventors: Satoshi UTSUNOMIYA, Yusuke OHATA
  • Patent number: 11731693
    Abstract: Provided are a steering function-equipped hub unit that has a simple structure, high rigidity and a reduced size, a steering system, as well as a vehicle including the steering function-equipped hub unit. The steering function-equipped hub unit includes: a hub unit main body including a hub bearing supporting a wheel; a unit support member provided to a knuckle of a suspension device and rotatably supporting the hub unit main body about a turning axis extending in a vertical direction; and a steering actuator configured to rotationally drive the hub unit main body about the turning axis. The hub unit main body is supported by the unit support member through a preloaded rolling bearing.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: August 22, 2023
    Assignee: NTN CORPORATION
    Inventors: Hirokazu Ooba, Satoshi Utsunomiya, Norio Ishihara, Yusuke Ohata
  • Patent number: 11565548
    Abstract: Provided is a turning function-equipped having a reduced size and having improved strength to an external shock force and improved reliability. The turning function-equipped hub unit includes: a hub unit main body; a unit support member; and a turning actuator. The unit support member is provided to a chassis frame component. The unit support member includes an abutment part with which a part of the hub unit main body is brought into abutment in a vertical direction during non-normal time, the abutment part being separated from the hub unit main body in the vertical direction during normal time, and the non-normal time in which the abutment is caused, is a time when an impact load equal to or greater than a predetermined value acts on the hub unit main body in the vertical direction due to an external force from the wheel.
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: January 31, 2023
    Assignee: NTN CORPORATION
    Inventors: Satoshi Utsunomiya, Hirokazu Ooba, Yusuke Ohata
  • Publication number: 20220410969
    Abstract: The steering function-equipped hub unit includes: a turning shaft-equipped hub bearing (15) including an inner ring, an outer ring, and rolling elements in double rows interposed between the inner ring and the outer ring, the turning shaft-equipped hub bearing having a turning shaft extending in a vertical direction; a unit support member (3) rotatably supporting the turning shaft-equipped hub bearing (15) about a turning axis of the turning shaft; and a steering actuator (5) configured to rotationally drive the turning shaft-equipped hub bearing (15) about the turning axis (A). The unit support member (3) and the steering actuator (5) include a flange (3a) and an end portion (25Aa), respectively, to be removably fixed to a knuckle (6) which is a chassis frame component of a vehicle.
    Type: Application
    Filed: September 6, 2022
    Publication date: December 29, 2022
    Applicant: NTN CORPORATION
    Inventors: Hirokazu OOBA, Yusuke OHATA
  • Publication number: 20210362770
    Abstract: Provided is a steering function-equipped hub unit including: a hub unit body including a hub bearing; a unit support member configured to be provided to a chassis frame component, the unit support member supporting the hub unit body such that the hub unit body is rotatable about a turning axis extending in a vertical direction; and a steering actuator configured to rotationally drive the hub unit body about the turning axis, wherein the hub bearing includes an outer race integrally provided with turning shaft parts protruding upward and downward in the vertical direction on an outer peripheral surface of the outer race, each of the turning shaft parts having an axis coinciding with the turning axis, and the hub unit body is rotatably supported by the unit support member through the turning shaft parts.
    Type: Application
    Filed: August 5, 2021
    Publication date: November 25, 2021
    Applicant: NTN CORPORATION
    Inventors: Satoshi UTSUNOMIYA, Yusuke OHATA
  • Publication number: 20210309285
    Abstract: Provided is a steering function equipped hub unit (1) including: a hub unit body (2); a unit support member (3) configured to be provided to a knuckle (6) and to support the hub unit body (2) such that the hub unit body is rotatable about a turning axis (A) extending in a vertical direction; and a steering actuator (5) configured to rotate the hub unit body (2) about the turning axis (A), wherein the steering actuator (5) includes a motor (26) and a linear motion mechanism (25) configured to convert a rotary output from the motor (26) into a linear motion, the linear motion mechanism (25) includes a feed screw mechanism (33) of a sliding screw type including a nut part (36) and a threaded shaft (36), and a surface hardening layer is provided on at least a threaded surface of one or both of the nut part (35) and the threaded shaft (36).
    Type: Application
    Filed: June 17, 2021
    Publication date: October 7, 2021
    Applicant: NTN CORPORATION
    Inventors: Hirokazu OOBA, Satoshi UTSUNOMIYA, Yusuke OHATA
  • Patent number: 11097768
    Abstract: A supplemental turning function-equipped hub unit includes: a hub unit body including a hub bearing; and a unit support member configured to be mounted through a suspension device, the unit support member supporting the hub unit body through rotation-permitting support components at two upper and lower portions of the hub unit body such that the hub unit body is rotatable about a supplemental turning axis. A supplemental turning force receiving part is provided on a side part of the hub unit body, which part is configured to receive a force that causes the hub unit body to rotate about the supplemental turning axis.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: August 24, 2021
    Assignee: NTN CORPORATION
    Inventors: Hirokazu Ooba, Tomomi Ishikawa, Kentaro Nishikawa, Satoshi Utsunomiya, Yusuke Ohata, Taisuke Igi, Norio Ishihara
  • Publication number: 20210197887
    Abstract: The present invention relates to a steering function-equipped hub unit (1) having a function of steering a rear wheel, the hub unit including: a hub unit body (2) having a hub bearing (15) configured to support the rear wheel (9R); a unit support member (3) rotatably supporting the hub unit body (2) about a turning axis (A) extending in a vertical direction, the unit support member being configured to be provided to a rear-wheel suspension (Rs); and a steering actuator (5) configured to rotate the hub unit body (2) about the turning axis (A).
    Type: Application
    Filed: March 17, 2021
    Publication date: July 1, 2021
    Applicant: NTN CORPORATION
    Inventors: Yusuke OHATA, Hirokazu OOBA, Satoshi UTSUNOMIYA
  • Publication number: 20210155283
    Abstract: Provided is a steering function-equipped hub unit for steering a rear wheel configured to be supported by a suspension device including a torsion beam and a pair of trailing arms. The hub unit includes: a turning shaft-equipped hub bearing including a turning shaft extending in a vertical direction and configured to rotatably support the rear wheel; a unit support member supporting the turning shaft-equipped hub bearing such that the turning shaft-equipped hub bearing is rotatable about a turning axis; and a steering actuator separate from the unit support member and configured to rotationally drive the turning shaft-equipped hub bearing. The steering actuator is attached to the suspension device at a position higher than a lowermost surface of the torsion beam and between a rotation support part of the suspension device and the turning shaft-equipped hub bearing.
    Type: Application
    Filed: November 24, 2020
    Publication date: May 27, 2021
    Applicants: HONDA MOTOR CO., LTD., NTN CORPORATION
    Inventors: Kyohei SAKAGAMI, Toru YAGASAKI, Yusuke OHATA, Hirokazu OOBA
  • Publication number: 20210009193
    Abstract: Provided is a steering system capable of enhancing traveling stability when a vehicle drives straight and improving small-turn performance. The steering system includes: a first steering device; a second steering device including a mechanical section configured to individually steer each of left and right wheels by driving a steering actuator and a control section configured to control the steering actuator; and a vehicle information detection section configured to detect a velocity of the vehicle and a steering angle. The control section includes a turning angle control module configured to control the steering actuator pursuant to a predetermined rule in accordance with the velocity of the vehicle and the steering angle so as to control turning angles of the left and right wheels.
    Type: Application
    Filed: September 25, 2020
    Publication date: January 14, 2021
    Applicant: NTN CORPORATION
    Inventors: Hirokazu OOBA, Norio ISHIHARA, Satoshi UTSUNOMIYA, Yusuke OHATA
  • Publication number: 20210009199
    Abstract: Provided are a steering function-equipped hub unit that has a simple structure, high rigidity and a reduced size, a steering system, as well as a vehicle including the steering function-equipped hub unit. The steering function-equipped hub unit includes: a hub unit main body including a hub bearing supporting a wheel; a unit support member provided to a knuckle of a suspension device and rotatably supporting the hub unit main body about a turning axis extending in a vertical direction; and a steering actuator configured to rotationally drive the hub unit main body about the turning axis. The hub unit main body is supported by the unit support member through a preloaded rolling bearing.
    Type: Application
    Filed: September 25, 2020
    Publication date: January 14, 2021
    Applicant: NTN CORPORATION
    Inventors: Hirokazu OOBA, Satoshi UTSUNOMIYA, Norio ISHIHARA, Yusuke OHATA
  • Publication number: 20200282769
    Abstract: Provided is a turning function-equipped having a reduced size and having improved strength to an external shock force and improved reliability. The turning function-equipped hub unit includes: a hub unit main body; a unit support member; and a turning actuator. The unit support member is provided to a chassis frame component. The unit support member includes an abutment part with which a part of the hub unit main body is brought into abutment in a vertical direction during non-normal time, the abutment part being separated from the hub unit main body in the vertical direction during normal time, and the non-normal time in which the abutment is caused, is a time when an impact load equal to or greater than a predetermined value acts on the hub unit main body in the vertical direction due to an external force from the wheel.
    Type: Application
    Filed: May 26, 2020
    Publication date: September 10, 2020
    Applicant: NTN CORPORATION
    Inventors: Satoshi UTSUNOMIYA, Hirokazu OOBA, Yusuke OHATA
  • Publication number: 20200122771
    Abstract: A supplemental turning function-equipped hub unit includes: a hub unit body including a hub bearing; and a unit support member configured to be mounted through a suspension device, the unit support member supporting the hub unit body through rotation-permitting support components at two upper and lower portions of the hub unit body such that the hub unit body is rotatable about a supplemental turning axis. A supplemental turning force receiving part is provided on a side part of the hub unit body, which part is configured to receive a force that causes the hub unit body to rotate about the supplemental turning axis.
    Type: Application
    Filed: December 19, 2019
    Publication date: April 23, 2020
    Applicant: NTN CORPORATION
    Inventors: Hirokazu OOBA, Tomomi Ishikawa, Kentaro Nishikawa, Satoshi Utsunomiya, Yusuke Ohata, Taisuke Igi, Norio Ishihara