Patents by Inventor Yukihiro Fujioka

Yukihiro Fujioka 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).

  • Connecting rod for an engine and method of making thereof
    Patent number: 9784304
    Abstract: A method to modify the geometry of a connecting rod of an internal combustion engine includes providing a connecting rod having a crankshaft bore at a first end, wherein the first end has a bearing cap and a bottom end portion of the connecting rod, mating the bearing cap with the bottom end portion of the connecting rod to form the crankshaft bore of the connecting rod, machining a width upset portion of the bottom end portion to reduce a width of the bottom end portion of the connecting rod, machining a width upset portion of the bearing cap to reduce a portion of a width of the bearing cap, and reducing the width of the bottom end portion of the connecting rod and the portion of the width of the bearing cap to a width smaller than a cylinder bore of the internal combustion engine.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: October 10, 2017
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Masayuki Ootani, Yukihiro Fujioka, Shinya Oohira
  • CONNECTING ROD FOR AN ENGINE AND METHOD OF MAKING THEREOF
    Publication number: 20150240864
    Abstract: A method to modify the geometry of a connecting rod of an internal combustion engine includes providing a connecting rod having a crankshaft bore at a first end, wherein the first end has a bearing cap and a bottom end portion of the connecting rod, mating the bearing cap with the bottom end portion of the connecting rod to form the crankshaft bore of the connecting rod, machining a width upset portion of the bottom end portion to reduce a width of the bottom end portion of the connecting rod, machining a width upset portion of the bearing cap to reduce a portion of a width of the bearing cap, and reducing the width of the bottom end portion of the connecting rod and the portion of the width of the bearing cap to a width smaller than a cylinder bore of the internal combustion engine.
    Type: Application
    Filed: May 12, 2015
    Publication date: August 27, 2015
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Masayuki Ootani, Yukihiro Fujioka, Shinya Oohira
  • Valve control apparatus for internal combustion engine
    Patent number: 8511266
    Abstract: A valve control apparatus is provided for an internal combustion engine. The apparatus includes a variable phase angle mechanism configured to continuously change a valve opening phase angle of a valve, a variable valve mechanism configured to continuously change at least one of a valve opening duration and a valve lift of the valve, and a controller configured to control the variable phase angle mechanism and the variable valve mechanism. The variable phase angle mechanism is configured to set the valve opening phase angle at a retarded phase angle in a startup operation as compared with a normal phase angle in a normal operation. After an engine stop command is generated, the controller controls the variable valve mechanism such that an integrated valve opening value is increased to be larger than an idle state integrated valve opening value in an idle state.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: August 20, 2013
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Yukihiro Fujioka
  • CONNECTING ROD FOR AN ENGINE AND METHOD OF MAKING THEREOF
    Publication number: 20120186387
    Abstract: A method to modify the geometry of a connecting rod of an internal combustion engine includes providing a connecting rod having a crankshaft bore at a first end, wherein the first end has a bearing cap and a bottom end portion of the connecting rod, mating the bearing cap with the bottom end portion of the connecting rod to form the crankshaft bore of the connecting rod, machining a width upset portion of the bottom end portion to reduce a width of the bottom end portion of the connecting rod, machining a width upset portion of the bearing cap to reduce a portion of a width of the bearing cap, and reducing the width of the bottom end portion of the connecting rod and the portion of the width of the bearing cap to a width smaller than a cylinder bore of the internal combustion engine.
    Type: Application
    Filed: January 20, 2012
    Publication date: July 26, 2012
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Masayuki Ootani, Yukihiro Fujioka, Shinya Oohira
  • VALVE CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE
    Publication number: 20100313837
    Abstract: A valve control apparatus is provided for an internal combustion engine. The apparatus includes a variable phase angle mechanism configured to continuously change a valve opening phase angle of a valve, a variable valve mechanism configured to continuously change at least one of a valve opening duration and a valve lift of the valve, and a controller configured to control the variable phase angle mechanism and the variable valve mechanism. The variable phase angle mechanism is configured to set the valve opening phase angle at a retarded phase angle in a startup operation as compared with a normal phase angle in a normal operation. After an engine stop command is generated, the controller controls the variable valve mechanism such that an integrated valve opening value is increased to be larger than an idle state integrated valve opening value in an idle state.
    Type: Application
    Filed: February 19, 2009
    Publication date: December 16, 2010
    Applicant: Nissan Motor Co., Ltd.
    Inventor: Yukihiro Fujioka