Patents by Inventor Tomoki Hirabayashi

Tomoki Hirabayashi 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: 9796235
    Abstract: A suspension device for an in-wheel motor driven wheel is provided. An upper suspension arm is pivotally supported on the vehicle body for supporting the wheel in a vehicle upper position higher than an axle. A link member pivotally connects the wheel to the upper suspension arm and has an absorber connecting portion connected to a lower end of the shock absorber. The shock absorber connecting portion is disposed in the vehicle bottom position lower than an upper end portion of the in-wheel motor unit. The shock absorber is disposed between the vehicle body and the in-wheel motor unit and inclined so as to be closer to the vehicle body toward the lower end.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: October 24, 2017
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yutaka Matayoshi, Tomoki Hirabayashi, Sakiko Suzuki, Jun Tamura
  • Patent number: 9731572
    Abstract: A suspension device for an in-wheel motor driven wheel ensures a lever ratio and stroke of a shock absorber without setting the upper end portion of the shock absorber at a high position. A wheel driven by an in-wheel motor unit is suspended on a vehicle body via a suspension structure member and a shock absorber, the suspension structure member including an upper suspension arm pivotally supported with respect to the vehicle body, and a third link. The third link pivotally connects the upper suspension arm to the wheel while having a shock absorber connecting portion to which the lower end of the shock absorber is connected. Further, the shock absorber connecting portion is disposed in the vehicle bottom position lower than an upper end surface of the in-wheel motor unit.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: August 15, 2017
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Jun Tamura, Tomoki Hirabayashi, Yutaka Matayoshi, Sakiko Suzuki
  • Patent number: 9553414
    Abstract: A motor power feed wire routing structure for an in-wheel motor driven wheel includes an electrical connection that electrically connects a motor side feed wire extending from the motor and a vehicle body-side feed wire extending from a vehicle mounted power source such that the vehicle body-side feed wire is rotatably connected relative to the motor side feed wire. The electrical connection mechanism is disposed on the knuckle outside of a space of a wheel recess of the wheel. The configuration allows reduction of whirling of the vehicle body-side wire during steering operation.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: January 24, 2017
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yutaka Matayoshi, Tomoki Hirabayashi
  • Publication number: 20160149357
    Abstract: A motor power feed wire routing structure for an in-wheel motor driven wheel includes an electrical connection that electrically connects a motor side feed wire extending from the motor and a vehicle body-side feed wire extending from a vehicle mounted power source such that the vehicle body-side feed wire is rotatably connected relative to the motor side feed wire. The electrical connection mechanism is disposed on the knuckle outside of a space of a wheel recess of the wheel. The configuration allows reduction of whirling of the vehicle body-side wire during steering operation.
    Type: Application
    Filed: April 25, 2014
    Publication date: May 26, 2016
    Inventors: Yutaka MATAYOSHI, Tomoki HIRABAYASHI
  • Publication number: 20160052356
    Abstract: A suspension device for an in-wheel motor driven wheel ensures a lever ratio and stroke of a shock absorber without setting the upper end portion of the shock absorber at a high position. A wheel driven by an in-wheel motor unit is suspended on a vehicle body via a suspension structure member and a shock absorber, the suspension structure member including an upper suspension arm pivotally supported with respect to the vehicle body, and a third link. The third link pivotally connects the upper suspension arm to the wheel while having a shock absorber connecting portion to which the lower end of the shock absorber is connected. Further, the shock absorber connecting portion is disposed in the vehicle bottom position lower than an upper end surface of the in-wheel motor unit.
    Type: Application
    Filed: March 31, 2014
    Publication date: February 25, 2016
    Inventors: Jun TAMURA, Tomoki HIRABAYASHI, Yutaka MATAYOSHI, Sakiko SUZUKI
  • Publication number: 20160052359
    Abstract: A suspension device for an in-wheel motor driven wheel is provided. An upper suspension arm is pivotally supported on the vehicle body for supporting the wheel in a vehicle upper position higher than an axle. A link member pivotally connects the wheel to the upper suspension arm and has an absorber connecting portion connected to a lower end of the shock absorber. The shock absorber connecting portion is disposed in the vehicle bottom position lower than an upper end portion of the in-wheel motor unit. The shock absorber is disposed between the vehicle body and the in-wheel motor unit and inclined so as to be closer to the vehicle body toward the lower end.
    Type: Application
    Filed: March 31, 2014
    Publication date: February 25, 2016
    Inventors: Yutaka MATAYOSHI, Tomoki HIRABAYASHI, Sakiko SUZUKI, Jun TAMURA
  • Patent number: 8439149
    Abstract: A brake equipment of the driver-seat-direction changeable vehicle includes: a driver-seat-direction detector configured to detect whether the driver seat is facing the one or the other side, in the travel direction, of the wheel-side vehicle body; a braking unit configured to brake one-side wheels, which are located closer to the one side, in the travel direction, of the wheel-side vehicle body, and other-side wheels, which are located closer to the other side, in the travel direction, of the wheel-side vehicle body, while controlling brake-force distribution between brake forces of the one-side wheels and the other-side wheels in such a manner that the brake-force distribution becomes a set brake-force distribution based on ideal brake-force distribution characteristics; and a switching unit configured to change the set brake-force distribution in accordance with the direction of the driver seat detected by the driver-seat-direction detector.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: May 14, 2013
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Jun Tamura, Tomoki Hirabayashi
  • Publication number: 20120152633
    Abstract: A brake equipment of the driver-seat-direction changeable vehicle includes: a driver-seat-direction detector configured to detect whether the driver seat is facing the one or the other side, in the travel direction, of the wheel-side vehicle body; a braking unit configured to brake one-side wheels, which are located closer to the one side, in the travel direction, of the wheel-side vehicle body, and other-side wheels, which are located closer to the other side, in the travel direction, of the wheel-side vehicle body, while controlling brake-force distribution between brake forces of the one-side wheels and the other-side wheels in such a manner that the brake-force distribution becomes a set brake-force distribution based on ideal brake-force distribution characteristics; and a switching unit configured to change the set brake-force distribution in accordance with the direction of the driver seat detected by the driver-seat-direction detector.
    Type: Application
    Filed: March 2, 2011
    Publication date: June 21, 2012
    Inventors: Jun Tamura, Tomoki Hirabayashi
  • Patent number: 6959639
    Abstract: A hydraulic booster brake system includes a flow priority valve connected to a discharge portion of a hydraulic pump. To the flow priority valve are connected a brake booster and a power steering booster in parallel. The flow priority valve supplies a stipulated flow quantity of a hydraulic fluid in a total flow quantity of the hydraulic fluid discharged by the hydraulic pump to the brake booster by priority. A relief valve is provided between a brake port and a drain port. A valve body of the relief valve can adjust a relief pressure by turning a screw shaft for relief pressure adjustment.
    Type: Grant
    Filed: April 11, 2003
    Date of Patent: November 1, 2005
    Assignee: Mitsubishi Fuso Truck And Bus Corporation
    Inventors: Shigeru Nagumo, Takashi Totsuka, Tomoki Hirabayashi
  • Publication number: 20030193238
    Abstract: A hydraulic booster brake system includes a flow priority valve connected to a discharge portion of a hydraulic pump. To the flow priority valve are connected a brake booster and a power steering booster in parallel. The flow priority valve supplies a stipulated flow quantity of a hydraulic fluid in a total flow quantity of the hydraulic fluid discharged by the hydraulic pump to the brake booster by priority. A relief valve is provided between a brake port and a drain port. A valve body of the relief valve can adjust a relief pressure by turning a screw shaft for relief pressure adjustment.
    Type: Application
    Filed: April 11, 2003
    Publication date: October 16, 2003
    Inventors: Shigeru Nagumo, Takashi Totsuka, Tomoki Hirabayashi