Patents by Inventor Hiroki YABUTA

Hiroki YABUTA 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: 11641146
    Abstract: Provided is a wheel bearing apparatus with a generator that can have a simplified structure to reduce costs and is capable of preventing electrolytic corrosion. The wheel bearing apparatus with a generator includes a wheel bearing and a generator. The generator includes a stator attached to a fixed wheel and a motor rotor attached to a rotating wheel and is of an outer-rotor type in which the stator is located on an outer periphery of the wheel bearing, and the motor rotor is located radially outside of the stator. The wheel bearing apparatus with the generator further includes at least one conducting unit that conducts a current between the fixed wheel and the rotating wheel.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: May 2, 2023
    Assignee: NTN CORPORATION
    Inventors: Hiroki Yabuta, Mitsuo Kawamura, Kentaro Nishikawa
  • Patent number: 11634021
    Abstract: The power device for a vehicle includes: a wheel bearing including a stationary ring and a rotary ring having a hub flange, the rotary ring being rotatably supported by the stationary ring via rolling element, the hub flange being configured to be attached with a wheel of a vehicle and a brake rotor; and a generator including a stator attached to the stationary ring of the wheel bearing and a rotor attached to the rotary ring of the wheel bearing, wherein the rotor includes a soft magnetic material part, magnets, and a resin material part that is integrally molded with the soft magnetic material part and the magnets.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: April 25, 2023
    Assignee: NTN CORPORATION
    Inventors: Mitsuo Kawamura, Kentaro Nishikawa, Yuuji Yada, Yasuyuki Fujita, Hiroki Yabuta
  • Patent number: 11577598
    Abstract: A wheel support bearing assembly includes a wheel support bearing and a power unit. The power unit is that of an outer rotor design in which a stator is located at an outer periphery of the wheel support bearing and a rotor is located radially outward of the stator. A radial extension of the entire power unit is sized to be radially inward of a peripheral section of a brake rotor. An entirety of the power unit, excluding a mount part thereof to a hub flange, is sized to be situated in an axial range between the hub flange and a mount surface, on an inboard side of the wheel support bearing. The rotor includes an outer shell magnetic body, which is made from soft magnetic material and forms an outer shell of the power unit, and permanent magnets that are provided to the outer shell magnetic body.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: February 14, 2023
    Assignee: NTN CORPORATION
    Inventors: Mitsuo Kawamura, Kentaro Nishikawa, Taisuke Igi, Yuuji Yada, Yasuyuki Fujita, Hiroki Yabuta
  • Patent number: 11447003
    Abstract: The vehicle power device includes: a wheel bearing including a stationary ring and a rotary ring; and a motor including a stator and a rotor. The stator and the rotor of the motor generator have a smaller diameter than that of an outer peripheral part of the brake rotor, and an entirety of the motor, excluding a mounting part to the hub flange, is located within an axial range between the hub flange and an outboard-side surface of a chassis frame component. An insulating layer is interposed between the stationary ring and the stator.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: September 20, 2022
    Assignee: NTN CORPORATION
    Inventors: Hiroki Yabuta, Kentaro Nishikawa, Mitsuo Kawamura, Yasuyuki Fujita, Yuuji Yada
  • Publication number: 20200276896
    Abstract: The power device for a vehicle includes: a wheel bearing including a stationary ring and a rotary ring having a hub flange, the rotary ring being rotatably supported by the stationary ring via rolling element, the hub flange being configured to be attached with a wheel of a vehicle and a brake rotor; and a generator including a stator attached to the stationary ring of the wheel bearing and a rotor attached to the rotary ring of the wheel bearing, wherein the rotor includes a soft magnetic material part, magnets, and a resin material part that is integrally molded with the soft magnetic material part and the magnets.
    Type: Application
    Filed: April 16, 2020
    Publication date: September 3, 2020
    Applicant: NTN CORPORATION
    Inventors: Mitsuo KAWAMURA, Kentaro NISHIKAWA, Yuuji YADA, Yasuyuki FUJITA, Hiroki YABUTA
  • Publication number: 20200238817
    Abstract: The vehicle power device includes: a wheel bearing including a stationary ring and a rotary ring; and a motor including a stator and a rotor. The stator and the rotor of the motor generator have a smaller diameter than that of an outer peripheral part of the brake rotor, and an entirety of the motor, excluding a mounting part to the hub flange, is located within an axial range between the hub flange and an outboard-side surface of a chassis frame component. An insulating layer is interposed between the stationary ring and the stator.
    Type: Application
    Filed: April 16, 2020
    Publication date: July 30, 2020
    Applicant: NTN CORPORATION
    Inventors: Hiroki YABUTA, Kentaro NISHIKAWA, Mitsuo KAWAMURA, Yasuyuki FUJITA, Yuuji YADA
  • Publication number: 20200198456
    Abstract: A wheel support bearing assembly includes a wheel support bearing and a power unit. The power unit is that of an outer rotor design in which a stator is located at an outer periphery of the wheel support bearing and a rotor is located radially outward of the stator. A radial extension of the entire power unit is sized to be radially inward of a peripheral section of a brake rotor. An entirety of the power unit, excluding a mount part thereof to a hub flange, is sized to be situated in an axial range between the hub flange and a mount surface, on an inboard side of the wheel support bearing. The rotor includes an outer shell magnetic body, which is made from soft magnetic material and forms an outer shell of the power unit, and permanent magnets that are provided to the outer shell magnetic body.
    Type: Application
    Filed: March 5, 2020
    Publication date: June 25, 2020
    Applicant: NTN CORPORATION
    Inventors: Mitsuo KAWAMURA, Kentaro NISHIKAWA, Taisuke IGI, Yuuji YADA, Yasuyuki FUJITA, Hiroki Yabuta
  • Publication number: 20200112229
    Abstract: Provided is a wheel bearing apparatus with a generator that can have a simplified structure to reduce costs and is capable of preventing electrolytic corrosion. The wheel bearing apparatus with a generator includes a wheel bearing and a generator. The generator includes a stator attached to a fixed wheel and a motor rotor attached to a rotating wheel and is of an outer-rotor type in which the stator is located on an outer periphery of the wheel bearing, and the motor rotor is located radially outside of the stator. The wheel bearing apparatus with the generator further includes at least one conducting unit that conducts a current between the fixed wheel and the rotating wheel.
    Type: Application
    Filed: December 6, 2019
    Publication date: April 9, 2020
    Applicant: NTN CORPORATION
    Inventors: Hiroki YABUTA, Mitsuo KAWAMURA, Kentaro NISHIKAWA