Patents by Inventor Atsuhito Ito

Atsuhito Ito 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).

  • Intake manifold
    Patent number: 7171934
    Abstract: In a branch pipe of an intake manifold, portion c in the central part is kept at relatively small constant inner diameter for an interval C, and portion e of which an end is connected to the surge tank is kept at relatively large constant inner diameter for an interval E, whereby the volumetric efficiency at the time of medium speed and high speed of engine is excellent.
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: February 6, 2007
    Assignees: Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Mitsubishi Jidosha Engineering Kabushiki Kaisha
    Inventors: Yoshinori Takabe, Atsuhito Ito
  • Intake manifold
    Publication number: 20050115535
    Abstract: In a branch pipe of an intake manifold, portion c in the central part is kept at relatively small constant inner diameter for an interval C, and portion e of which an end is connected to the surge tank is kept at relatively large constant inner diameter for an interval E, whereby the volumetric efficiency at the time of medium speed and high speed of engine is excellent.
    Type: Application
    Filed: October 19, 2004
    Publication date: June 2, 2005
    Applicants: Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Mitsubishi Jidosha Engineering Kabushiki Kaisha
    Inventors: Yoshinori Yakabe, Atsuhito Ito
  • Variable air intake mechanism of engine
    Patent number: 6805087
    Abstract: An air intake structure of an engine has a first intake air passage and a second intake air passage provided independently and having downstream end portions branched into a plurality of intake ducts connected to a plurality of cylinders of the engine. The neighborhood of the downstream end portion of the first intake air passage and the neighborhood of the down stream end portion of the second intake air passage can be brought into communication by a first communication element. The first intake air passage and the second intake air passage are rendered communicable by a second communication element upstream from the first communication element in the flowing direction of intake air. The first communication element and the second communication element are controlled in accordance with the operating state of the engine.
    Type: Grant
    Filed: November 13, 2003
    Date of Patent: October 19, 2004
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Yoshinori Yakabe, Hidetoshi Ono, Atsuhito Ito, Katumi Ezaki
  • Variable air intake mechanism of engine
    Publication number: 20040144353
    Abstract: An air intake structure of an engine has a first intake air passage and a second intake air passage provided independently and having downstream end portions branched into a plurality of intake ducts connected to a plurality of cylinders of the engine. The neighborhood of the downstream end portion of the first intake air passage and the neighborhood of the downstream end portion of the second intake air passage can be brought into communication by a first communication element. The first intake air passage and the second intake air passage are rendered communicable by a second communication element upstream from the first communication element in the flowing direction of intake air. The first communication element and the second communication element are controlled in accordance with the operating state of the engine.
    Type: Application
    Filed: November 13, 2003
    Publication date: July 29, 2004
    Inventors: Yoshinori Yakabe, Hidetoshi Ono, Atsuhito Ito, Katumi Ezaki