Patents by Inventor Takamori SHIRASUNA

Takamori SHIRASUNA 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: 11713091
    Abstract: A straddle type electric vehicle comprises a main frame, a motor unit including an electric motor, a battery that supplies power to the motor unit, and a control unit that executes drive control of the motor unit. The main frame includes a left and right pair of portions, and at least a portion of the motor unit is disposed at a position overlapping the main frame in a side view of the vehicle.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: August 1, 2023
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Takamori Shirasuna, Makoto Fujikubo, Kazuya Atsumi, Yoshihiro Nomura, Yoshimi Numazaki
  • Patent number: 11492075
    Abstract: A straddle type electric vehicle comprises a main frame, a motor unit including an electric motor, and a battery that supplies power to the motor unit. The main frame includes a left and right pair of portions. The motor unit is disposed overlapping the main frame in a side view of the vehicle. A motor shaft of the electric motor is disposed above the pivot shaft and rearward in the vehicle longitudinal direction.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: November 8, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Takamori Shirasuna, Makoto Fujikubo, Kazuya Atsumi, Yoshihiro Nomura
  • Patent number: 11420709
    Abstract: A straddle type electric vehicle comprises a vehicle body frame, a motor unit including an electric motor, a battery that supplies power to the motor unit, and a control unit that executes drive control of the motor unit. The vehicle body frame includes a main frame extending in a vehicle longitudinal direction. The motor unit, the battery, and the control unit are supported by the main frame between the front wheel and the rear wheel, and in a vehicle side view. The motor unit and the control unit are disposed overlapping one another.
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: August 23, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Takamori Shirasuna, Makoto Fujikubo, Kazuya Atsumi, Yoshihiro Nomura
  • Publication number: 20210001953
    Abstract: A straddle type electric vehicle comprises a vehicle body frame, a motor unit including an electric motor, a battery that supplies power to the motor unit, and a control unit that executes drive control of the motor unit. The vehicle body frame includes a main frame extending in a vehicle longitudinal direction. The motor unit, the battery, and the control unit are supported by the main frame between the front wheel and the rear wheel, and in a vehicle side view. The motor unit and the control unit are disposed overlapping one another.
    Type: Application
    Filed: September 21, 2020
    Publication date: January 7, 2021
    Inventors: Takamori SHIRASUNA, Makoto FUJIKUBO, Kazuya ATSUMI, Yoshihiro NOMURA
  • Publication number: 20200407005
    Abstract: A straddle type electric vehicle comprises a main frame, a motor unit including an electric motor, a battery that supplies power to the motor unit, and a control unit that executes drive control of the motor unit. The main frame includes a left and right pair of portions, and at least a portion of the motor unit is disposed at a position overlapping the main frame in a side view of the vehicle.
    Type: Application
    Filed: September 9, 2020
    Publication date: December 31, 2020
    Inventors: Takamori SHIRASUNA, Makoto FUJIKUBO, Kazuya ATSUMI, Yoshihiro NOMURA, Yoshimi NUMAZAKI
  • Publication number: 20200398933
    Abstract: A straddle type electric vehicle comprises a main frame, a motor unit including an electric motor, and a battery that supplies power to the motor unit. The main frame includes a left and right pair of portions. The motor unit is disposed overlapping the main frame in a side view of the vehicle. A motor shaft of the electric motor is disposed above the pivot shaft and rearward in the vehicle longitudinal direction.
    Type: Application
    Filed: September 8, 2020
    Publication date: December 24, 2020
    Inventors: Takamori SHIRASUNA, Makoto FUJIKUBO, Kazuya ATSUMI, Yoshihiro NOMURA
  • Patent number: 10006523
    Abstract: A compact power unit with a sufficient clearance between a stud bolt and a fixing shaft of a cam chain tensioner pivot mechanism for supporting a cam chain tensioner guide. The power unit including a crankshaft, a stud bolt configured to fix a crankcase and a cylinder body to each other, a cam chain, a cam chain tensioner mechanism including a cam chain tensioner guide, and a cam chain tensioner pivot mechanism including a pivot plate, a fixing shaft, and a swinging shaft, the fixing shaft and the swinging shaft are arranged so as to straddle the axis of the stud bolt as viewed in the axial direction of the crankshaft.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: June 26, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yutaka Inomoto, Koji Kobayashi, Keita Shigematsu, Takamori Shirasuna
  • Patent number: 9644705
    Abstract: A damper unit of an internal combustion engine includes an input-side rotor, an output-side rotor, first coiled springs, second coiled springs, an input-side sliding contact surface, and a biasing member. The input-side rotor includes a first spring holder, a second spring holder, and a connecting portion. The second spring holder is arranged on a second side of the output-side rotor, has a facing side facing the output-side rotor, and has second spring accommodation portions on the facing side each of which accommodates each of the second coiled springs. The input-side sliding contact surface is provided in the second spring holder so as to be in sliding contact with an output-side sliding contact surface of the output-side rotor. The biasing member is provided between the first spring holder and the output-side rotor to press the output-side rotor toward the second spring holder.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: May 9, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Takamori Shirasuna, Hiroyuki Sugiura, Mitsuyoshi Kamiya
  • Publication number: 20170089432
    Abstract: A compact power unit with a sufficient clearance between a stud bolt and a fixing shaft of a cam chain tensioner pivot mechanism for supporting a cam chain tensioner guide. The power unit including a crankshaft, a stud bolt configured to fix a crankcase and a cylinder body to each other, a cam chain, a cam chain tensioner mechanism including a cam chain tensioner guide, and a cam chain tensioner pivot mechanism including a pivot plate, a fixing shaft, and a swinging shaft, the fixing shaft and the swinging shaft are arranged so as to straddle the axis of the stud bolt as viewed in the axial direction of the crankshaft.
    Type: Application
    Filed: September 21, 2016
    Publication date: March 30, 2017
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Yutaka INOMOTO, Koji KOBAYASHI, Keita SHIGEMATSU, Takamori SHIRASUNA
  • Patent number: 9316270
    Abstract: A solenoid body is attached to an outer surface side of a clutch cover attached to an engine main body so as to cover a pair of hydraulic clutches. A hydraulic control solenoid valve for controlling pressure of a hydraulic oil from an oil pump, a single switching valve for alternatively selecting hydraulic chambers of the pair of hydraulic clutches to be supplied with the hydraulic oil from the hydraulic control solenoid valve, and a shift solenoid valve for controlling operation of the switching valve are attached to the solenoid body.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: April 19, 2016
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Toshimasa Mitsubori, Takamori Shirasuna, Eiji Kittaka
  • Publication number: 20160084343
    Abstract: A damper unit of an internal combustion engine includes an input-side rotor, an output-side rotor, first coiled springs, second coiled springs, an input-side sliding contact surface, and a biasing member. The input-side rotor includes a first spring holder, a second spring holder, and a connecting portion. The second spring holder is arranged on a second side of the output-side rotor, has a facing side facing the output-side rotor, and has second spring accommodation portions on the facing side each of which accommodates each of the second coiled springs. The input-side sliding contact surface is provided in the second spring holder so as to be in sliding contact with an output-side sliding contact surface of the output-side rotor. The biasing member is provided between the first spring holder and the output-side rotor to press the output-side rotor toward the second spring holder.
    Type: Application
    Filed: August 26, 2015
    Publication date: March 24, 2016
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Takamori SHIRASUNA, Hiroyuki SUGIURA, Mitsuyoshi KAMIYA
  • Publication number: 20140291106
    Abstract: A solenoid body is attached to an outer surface side of a clutch cover attached to an engine main body so as to cover a pair of hydraulic clutches. A hydraulic control solenoid valve for controlling pressure of a hydraulic oil from an oil pump, a single switching valve for alternatively selecting hydraulic chambers of the pair of hydraulic clutches to be supplied with the hydraulic oil from the hydraulic control solenoid valve, and a shift solenoid valve for controlling operation of the switching valve are attached to the solenoid body.
    Type: Application
    Filed: March 24, 2014
    Publication date: October 2, 2014
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Toshimasa MITSUBORI, Takamori SHIRASUNA, Eiji KITTAKA