Patents by Inventor Keiji Ooshima

Keiji Ooshima 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).

  • Engine
    Patent number: 8166951
    Abstract: An engine includes an angular velocity detecting means 10 for detecting a rotation angular velocity of a crankshaft 11 of the engine, a torque generated by the engine detecting means for detecting a variability of the angular velocity amplitude obtained by the angular velocity detecting means 10 as the variability of the torque generated by the engine. The engine compensates a fuel injection quantity by comparing the angular velocity amplitude detected by the angular velocity detecting means with the adequate angular velocity amplitude.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: May 1, 2012
    Assignee: Yanmar Co., Ltd.
    Inventors: Takeshi Takahashi, Tooru Yoshizuka, Yukihiro Shinohara, Keiji Ooshima, Toshiro Itatsu
  • Cetane number detection means and engine having the cetane number detection means
    Patent number: 8060292
    Abstract: A cetane number detection device in which an angular velocity detection device (10) for detecting the rotation angular velocity of the crankshaft (11) of an engine (54), and which detects a variation in the value of the amplitude of the angular velocity detected by the angular velocity detection device (10) as a variation in cetane number.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: November 15, 2011
    Assignees: Yanmar Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Takeshi Takahashi, Terumitsu Takahata, Hidenori Nomura, Gou Asai, Yukihiro Shinohara, Keiji Ooshima, Toshiro Itatsu
  • Cetane Number Detection Means and Engine Having the Cetane Number Detection Means
    Publication number: 20100030453
    Abstract: A cetane number detection means in which an angular velocity detection means (10) for detecting the rotation angular velocity of the crankshaft (11) of an engine (54), and which detects a variation in the value of the amplitude of the angular velocity detected by the angular velocity detection means (10) as a variation in cetane number.
    Type: Application
    Filed: April 19, 2007
    Publication date: February 4, 2010
    Applicants: Yanmar Co., Ltd., Toyota Jidosha Kabushiki kaisha
    Inventors: Takeshi Takahashi, Terumitsu Takahata, Hidenori Nomura, Gou Asao, Yukihiro Shinohara, Keiji Ooshima, Toshiro Itatsu
  • Engine Torque Detection Means
    Publication number: 20100006077
    Abstract: An engine includes an angular velocity detecting means 10 for detecting a rotation angular velocity of a crankshaft 11 of the engine, a torque generated by the engine detecting means for detecting a variability of the angular velocity amplitude obtained by the angular velocity detecting means 10 as the variability of the torque generated by the engine. The engine compensates a fuel injection quantity by comparing the angular velocity amplitude detected by the angular velocity detecting means with the adequate angular velocity amplitude.
    Type: Application
    Filed: April 19, 2007
    Publication date: January 14, 2010
    Inventors: Takeshi Takahashi, Tooru Yoshizuka, Yukihiro Shinohara, Keiji Ooshima, Toshiro Itatsu