Patents by Inventor Naotaka Yoshikawa

Naotaka Yoshikawa 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).

  • PCV valve mounting structures
    Patent number: 9382881
    Abstract: A mounting structure for mounting a PCV valve includes a mount recess formed in at least one of joint surfaces of a cylinder head and an intake manifold, so that at least a part of the PCV valve can be fitted into the mount recess.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: July 5, 2016
    Assignee: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Hironori Tanikawa, Naotaka Yoshikawa, Hirokazu Konohara
  • PCV VALVE MOUNTING STRUCTURES
    Publication number: 20150114369
    Abstract: A mounting structure for mounting a PCV valve includes a mount recess formed in at least one of joint surfaces of a cylinder head and an intake manifold, so that at least a part of the PCV valve can be fitted into the mount recess.
    Type: Application
    Filed: December 30, 2014
    Publication date: April 30, 2015
    Inventors: Hironori TANIKAWA, Naotaka YOSHIKAWA, Hirokazu KONOHARA
  • PCV valve mounting structures
    Patent number: 8955501
    Abstract: A mounting structure for mounting a PCV valve includes a mount recess formed in at least one of joint surfaces of a cylinder head and an intake manifold, so that at least a part of the PCV valve can be fitted into the mount recess.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: February 17, 2015
    Assignee: Aisan Kogyo Kabushiki Kaisha
    Inventors: Hironori Tanikawa, Naotaka Yoshikawa, Hirokazu Konohara
  • Bearing device
    Patent number: 8640671
    Abstract: A bearing device includes a plurality of pairs of bearing parts for supporting shafts to each of which a plurality valves are attached and connecting parts for connecting the bearing parts. Each connecting part is elastically deformable and includes a bent portion in a bent shape to absorb the force that will act in at least one of an axial direction and a radial direction of the shafts when the shafts are rotated.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: February 4, 2014
    Assignee: Aisan Kogyo Kabushiki Kaisha
    Inventors: Shinji Iwata, Naotaka Yoshikawa
  • PCV VALVE MOUNTING STRUCTURES
    Publication number: 20110203559
    Abstract: A mounting structure for mounting a PCV valve includes a mount recess formed in at least one of joint surfaces of a cylinder head and an intake manifold, so that at least a part of the PCV valve can be fitted into the mount recess.
    Type: Application
    Filed: February 18, 2011
    Publication date: August 25, 2011
    Applicant: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Hironori TANIKAWA, Naotaka YOSHIKAWA, Hirokazu KONOHARA
  • Bearing device
    Publication number: 20100192893
    Abstract: A bearing device includes a plurality of pairs of bearing parts for supporting shafts to each of which a plurality valves are attached and connecting parts for connecting the bearing parts. Each connecting part is elastically deformable and includes a bent portion in a bent shape to absorb the force that will act in at least one of an axial direction and a radial direction of the shafts when the shafts are rotated.
    Type: Application
    Filed: December 17, 2009
    Publication date: August 5, 2010
    Applicant: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Shinji Iwata, Naotaka Yoshikawa