Patents by Inventor Kazuya Koike

Kazuya Koike 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: 10717369
    Abstract: A charge control apparatus for an electric vehicle that includes: a traction motor; a traction battery to which charging current is supplied from an external power source and that supplies current to the traction motor; and an electric device actuated by part of the charging current during charging of the traction battery is provided. The charge control apparatus includes: an instruction unit to instruct decrease of load of the electric device in case that the electric device is actuated during charging of the traction battery; a restriction unit to restrict the charging current after instruction of the decrease of load; and a load decreasing unit for decreasing load of the electric device after restricting the charging current.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: July 21, 2020
    Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Kazuya Koike, Shinya Fujiwara, Norihiko Hatsumi, Koichi Tano
  • Publication number: 20180056804
    Abstract: The present disclosure provides a charge, control apparatus for an electric vehicle, the electric vehicle including: a traction motor; a traction battery to which charging current is supplied from an external power source and that supplies current to the traction motor; and an electric device actuated by part of the charging current during charging of the traction battery. The charge control apparatus includes: an instruction unit to instruct decrease of load of the electric device in case that the electric device is actuated during charging of the traction battery; a restriction unit to restrict the charging current after instruction of the decrease of load; and a load decreasing unit for decreasing load of the electric device after restricting the charging current.
    Type: Application
    Filed: August 16, 2017
    Publication date: March 1, 2018
    Applicant: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Kazuya KOIKE, Shinya FUJIWARA, Norihiko HATSUMI, Koichi TANO
  • Patent number: 8061313
    Abstract: A variable valve device is constructed to prevent inclination of a sliding surface of a high speed rocker arm. In an engagement surface where a connecting pin and the engagement portion of a high speed rocker arm are in contact, the center of the width of the surface in the direction of the cam shaft is provided closer to the high speed rocker arm than the center of the width in the direction of the camshaft of a cam contact surface where the high speed cam and the sliding surface of the high speed rocker arm are in contact. The low speed rocker arm includes a cam receiver and a connecting portion. The width of the connecting portion is larger than that of the cam receiver. The side surface of the connecting portion projects beyond the side surface of the cam receiver. The high speed rocker arm includes a cam receiver and a connecting portion.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: November 22, 2011
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Toshihiko Takahashi, Kazuya Koike
  • Patent number: 8033256
    Abstract: An engine having a variable valve mechanism arranged to switch a lift degree of a valve between a low speed state and a high speed state includes a cam carrier defined by a cam bearing portion, a rocker shaft support, and a hydraulic cylinder support. The cam bearing portion is provided on a line passing through the bore center of a cylinder in a plane perpendicular or substantially perpendicular to the camshaft. The low speed rocker arm swings in response to the low speed cam of the camshaft. The high speed rocker arm swings in response to the high speed cam of the camshaft. The low speed rocker arm includes a through hole. A connecting pin is slidably inserted into the through hole and urged toward the hydraulic cylinder support. A hydraulic cylinder is provided in the hydraulic cylinder support.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: October 11, 2011
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Toshihiko Takahashi, Kazuya Koike
  • Publication number: 20090205597
    Abstract: A variable valve device is constructed to prevent inclination of a sliding surface of a high speed rocker arm. In an engagement surface where a connecting pin and the engagement portion of a high speed rocker arm are in contact, the center of the width of the surface in the direction of the cam shaft is provided closer to the high speed rocker arm than the center of the width in the direction of the camshaft of a cam contact surface where the high speed cam and the sliding surface of the high speed rocker arm are in contact. The low speed rocker arm includes a cam receiver and a connecting portion. The width of the connecting portion is larger than that of the cam receiver. The side surface of the connecting portion projects beyond the side surface of the cam receiver. The high speed rocker arm includes a cam receiver and a connecting portion.
    Type: Application
    Filed: February 18, 2009
    Publication date: August 20, 2009
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Toshihiko TAKAHASHI, Kazuya KOIKE
  • Publication number: 20090205598
    Abstract: An engine having a variable valve mechanism arranged to switch a lift degree of a valve between a low speed state and a high speed state includes a cam carrier defined by a cam bearing portion, a rocker shaft support, and a hydraulic cylinder support. The cam bearing portion is provided on a line passing through the bore center of a cylinder in a plane perpendicular or substantially perpendicular to the camshaft. The low speed rocker arm swings in response to the low speed cam of the camshaft. The high speed rocker arm swings in response to the high speed cam of the camshaft. The low speed rocker arm includes a through hole. A connecting pin is slidably inserted into the through hole and urged toward the hydraulic cylinder support. A hydraulic cylinder is provided in the hydraulic cylinder support. The hydraulic piston is slidably inserted into the hydraulic cylinder and abutted against the connecting pin.
    Type: Application
    Filed: February 18, 2009
    Publication date: August 20, 2009
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Toshihiko TAKAHASHI, Kazuya KOIKE
  • Patent number: D977915
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: February 14, 2023
    Assignee: TIGER CORPORATION
    Inventors: Masahiro Watanabe, Kazuya Koike
  • Patent number: D988139
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: June 6, 2023
    Assignee: TIGER CORPORATION
    Inventors: Masahiro Watanabe, Kazuya Koike