Patents by Inventor Yujirou Ishikawa

Yujirou Ishikawa 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).

  • Pour connector and pour port structure of liquid container
    Patent number: 8127807
    Abstract: A guide piece having a guide surface is integrally formed in a body portion so as to protrude from an inner circumferential wall surface of a pour passage toward the center thereof. A gas guide portion is formed in a portion of the pour passage in which the guide piece is formed. The gas guide portion is defined by a lower surface of the guide piece and the inner circumferential wall surface of the pour passage.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: March 6, 2012
    Assignees: Tokai Kogyo Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroyuki Ito, Tadashi Kojima, Yujirou Ishikawa, Takahiro Goto
  • Pour Connector and Pour Port Structure of Liquid Container
    Publication number: 20090071570
    Abstract: A guide piece having a guide surface is integrally formed in a body portion so as to protrude from an inner circumferential wall surface of a pour passage toward the center thereof. A gas guide portion is formed in a portion of the pour passage in which the guide piece is formed. The gas guide portion is defined by a lower surface of the guide piece and the inner circumferential wall surface of the pour passage.
    Type: Application
    Filed: May 31, 2007
    Publication date: March 19, 2009
    Applicants: TOKAI KOGYO CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroyuki Ito, Tadashi Kojima, Yujirou Ishikawa, Takahiro Goto
  • Water-Cooled Engine and Cylinder Block Thereof
    Publication number: 20080245320
    Abstract: A cylinder block has a cylinder bore and a water jacket provided about the cylinder bore. The cylinder block is divided at the water jacket into a cylinder liner portion and a cylinder outer wall portion. The cylinder liner portion has a wall defining the cylinder bore. The cylinder outer wall portion surrounds the wall of the cylinder liner portion, thereby defining the water jacket between the cylinder outer wall portion and the wall of the cylinder liner portion. The cylinder liner portion includes an upper deck portion integrally formed with the cylinder liner portion. The upper deck portion contacts the cylinder head assembled to the cylinder block. The cylinder outer wall portion has a top surface that functions as a receiving surface that contacts and supports the upper deck portion.
    Type: Application
    Filed: October 28, 2004
    Publication date: October 9, 2008
    Inventor: Yujirou Ishikawa