Patents by Inventor Yuichi Yoneda

Yuichi Yoneda 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: 11226025
    Abstract: A drivetrain has a first speed path and a third speed path. The first speed path includes a one-way clutch that allows power transmission from the drive shaft toward the driven shaft but prevents power transmission in the opposite direction. The third speed path includes a one-way clutch that allows power transmission from the driven shaft toward the drive shaft but prevents power transmission in the opposite direction. The third speed path further includes a shift clutch member. This can provide a drivetrain capable of performing regenerative control to derive electricity appropriately from an electric motor and also capable of shifting gears smoothly.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: January 18, 2022
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Yuichi Yoneda, Asaki Fujiwara
  • Publication number: 20180328455
    Abstract: A drivetrain has a first speed path and a third speed path. The first speed path includes a one-way clutch that allows power transmission from the drive shaft toward the driven shaft but prevents power transmission in the opposite direction. The third speed path includes a one-way clutch that allows power transmission from the driven shaft toward the drive shaft but prevents power transmission in the opposite direction. The third speed path further includes a shift clutch member. This can provide a drivetrain capable of performing regenerative control to derive electricity appropriately from an electric motor and also capable of shifting gears smoothly.
    Type: Application
    Filed: May 11, 2018
    Publication date: November 15, 2018
    Inventors: Yuichi YONEDA, Asaki FUJIWARA
  • Publication number: 20180326867
    Abstract: A plurality of control maps respectively corresponding to a plurality of lever operation amounts are stored in a storage device. Each control map defines a driving force to be output from an electric motor such that the driving force corresponds to an accelerator operation amount and a vehicle speed. A control device uses a control map corresponding to an actual lever operation amount among the plurality of control maps and thereby calculates the driving force to be output from the electric motor based on an actual accelerator operation amount and an actual vehicle speed from the control map. This vehicle can alleviate discomfort caused when a driver accustomed to an engine vehicle operates an electric vehicle.
    Type: Application
    Filed: May 10, 2018
    Publication date: November 15, 2018
    Inventor: Yuichi YONEDA
  • Patent number: 8387369
    Abstract: A secondary air supply device that increases a supply amount of secondary air is provided in a straddle-type vehicle and includes a plurality of secondary air supply pipes respectively communicated with an exhaust passage of an engine and reed valves. The plurality of reed valves are arranged to be spaced apart in the vehicle width direction so as to increase the supply amount of secondary air.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: March 5, 2013
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Yuichi Yoneda, Mikio Ishimoto
  • Publication number: 20100045014
    Abstract: A secondary air supply device that increases a supply amount of secondary air is provided in a straddle-type vehicle and includes a plurality of secondary air supply pipes respectively communicated with an exhaust passage of an engine and reed valves. The plurality of reed valves are arranged to be spaced apart in the vehicle width direction so as to increase the supply amount of secondary air.
    Type: Application
    Filed: February 27, 2009
    Publication date: February 25, 2010
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Yuichi YONEDA, Mikio ISHIMOTO