Patents by Inventor Tadaatsu Ichihara

Tadaatsu Ichihara 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).

  • Carburetor with fuel vapor control
    Patent number: 7097162
    Abstract: A carburetor includes a body having a fuel and air mixing passage formed therein and an opening in fluid communication with the fuel and air mixing passage, a fuel metering assembly carried by the body and including a fuel metering diaphragm that defines at least part of a fuel chamber that is communicated with the opening, and a groove formed in the body and open to the fuel chamber. The groove communicates at one end with the opening so that fuel vapor in the groove can be moved from the fuel chamber to the fuel and air mixing passage via the groove and opening. The groove is preferably provided at least in part in a peripheral portion of the fuel chamber to guide vapor to a fuel jet as the fuel vapor moves within the fuel chamber.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: August 29, 2006
    Assignee: Walbro Japan, Inc.
    Inventors: Tadaatsu Ichihara, Takeshi Sakaguchi
  • Carburetor with fuel vapor control
    Publication number: 20040232568
    Abstract: A carburetor includes a body having a fuel and air mixing passage formed therein and an opening in fluid communication with the fuel and air mixing passage, a fuel metering assembly carried by the body and including a fuel metering diaphragm that defines at least part of a fuel chamber that is communicated with the opening, and a groove formed in the body and open to the fuel chamber. The groove communicates at one end with the opening so that fuel vapor in the groove can be moved from the fuel chamber to the fuel and air mixing passage via the groove and opening. The groove is preferably provided at least in part in a peripheral portion of the fuel chamber to guide vapor to a fuel jet as the fuel vapor moves within the fuel chamber.
    Type: Application
    Filed: March 26, 2004
    Publication date: November 25, 2004
    Inventors: Tadaatsu Ichihara, Takeshi Sakaguchi