Patents by Inventor Yoji TSUZUKI

Yoji TSUZUKI 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: 8844582
    Abstract: A delivery pipe is molded of resin and internally formed with a fuel passage. The delivery pipe has a shape of cross section including a single straight part, a single curved part, and joint parts at joints between ends of the straight part and the curved part. The joint part has an outer appearance protruding outward. The resin contains reinforcing glass fibers. A corresponding portion to a resin injection gate is located at an end region of the straight part in a longitudinal direction of the fuel passage.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: September 30, 2014
    Assignee: Aisan Kogyo Kabushiki Kaisha
    Inventors: Hirofumi Hashiba, Yoji Tsuzuki, Hikaru Kikuta
  • Publication number: 20110283973
    Abstract: A fuel delivery pipe made of resin, comprises: a pipe body internally formed with a fuel passage; an inlet pipe for introducing fuel into the pipe body; a plurality of injector attaching parts for distributing the fuel introduced into the pipe body to a plurality of injectors through the fuel passage; and communication passages for communicating the fuel passage with the injector attaching parts, wherein the pipe body includes an absorbing part formed in a flat planar shape extending in a longitudinal direction of the pipe body, and the communication passages are placed so that respective centers are offset to the absorbing part side than a center of the pipe body.
    Type: Application
    Filed: March 17, 2011
    Publication date: November 24, 2011
    Applicant: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Kensuke NIWA, Hikaru KIKUTA, Yoji TSUZUKI
  • Publication number: 20110265766
    Abstract: A fuel delivery pipe made of resin, comprises: a pipe body internally formed with a fuel passage; an inlet pipe for introducing fuel into the pipe body; and a plurality of injector attaching parts for distributing the fuel introduced into the pipe body to a plurality of injectors through the fuel passage, the inlet pipe having an internal diameter smaller than an internal diameter of the pipe body and being integrally formed at one end of the pipe body through a joint portion provided with a slant surface with a diameter gradually decreasing toward a root of the inlet pipe.
    Type: Application
    Filed: March 9, 2011
    Publication date: November 3, 2011
    Applicant: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Kensuke NIWA, Hikaru KIKUTA, Yoji TSUZUKI
  • Publication number: 20110186171
    Abstract: A delivery pipe is molded of resin and internally formed with a fuel passage. The delivery pipe has a shape of cross section including a single straight part, a single curved part, and joint parts at joints between ends of the straight part and the curved part. The joint part has an outer appearance protruding outward. The resin contains reinforcing glass fibers. A corresponding portion to a resin injection gate is located at an end region of the straight part in a longitudinal direction of the fuel passage.
    Type: Application
    Filed: December 13, 2010
    Publication date: August 4, 2011
    Applicant: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Hirofumi HASHIBA, Yoji TSUZUKI, Hikaru KIKUTA
  • Publication number: 20090126697
    Abstract: A fuel-feeding system may preferably include a fuel tank containing liquid fuel; a fuel pump capable of pumping the liquid fuel contained in the fuel tank; a fuel injection valve capable of injecting the liquid fuel pumped by the fuel pump; and a three-way valve having a first port, a second port and a third port. The three-way valve is constructed so as to be switched between a first condition in which the first, second and third ports communicate with each other and a second condition in which only the first and third ports communicate with each other. The fuel injection valve is connected to the third external conduit at a position between the third port and the second relief valve, so that a pressure of the liquid fuel fed to the fuel injection valve can be switched between the first setting pressure and the second setting pressure when the three-way valve is switched between the first condition and the second condition.
    Type: Application
    Filed: September 25, 2008
    Publication date: May 21, 2009
    Applicant: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Yasunori TAKAKU, Kimiya NAKATA, Yoji TSUZUKI, Hideki ITO