Patents by Inventor Kazuji Managawa

Kazuji Managawa 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).

  • Apparatus and method for measuring fuel flow rate and residual fuel quantity and for controlling evaporated fuel
    Patent number: 6230558
    Abstract: A residual fuel quantity measuring device for automobiles has a fuel flow rate sensor provided in a filler neck of a fuel tank for measuring the flow rate of liquid fuel supplied to a fuel tank. A computer computes the quantity of liquid fuel remaining in the fuel tank from a previously stored residual quantity of liquid fuel, the measured fuel flow rate, the injection rate of fuel from fuel injection valves, and the purge quantity of fuel evaporated in the fuel tank. A fuel meter visually displays the thus computed residual quantity of liquid fuel in the fuel tank.
    Type: Grant
    Filed: May 12, 1998
    Date of Patent: May 15, 2001
    Assignee: Denso Corporation
    Inventors: Makoto Miwa, Shigenori Isomura, Toshihiko Muramatsu, Kazuji Managawa, Takeshi Matsuda, Takahiko Kato