Patents by Inventor Kazutaka HIOKI

Kazutaka HIOKI 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).

  • Leakage detector for fuel vapor treatment device
    Patent number: 11326559
    Abstract: A leakage detector for a fuel vapor treatment device includes a fuel vapor treatment device that maintains the interior of a treatment system of the fuel vapor treatment device in a sealed state. In addition, the leakage detector includes; a closing valve and shutoff valve that can shut off fluid communication between the fuel tank and the canister to section the interior of the treatment system into a first region including the fuel tank and a second region including the canister. Further, the leakage detector includes an aspirator that applies a negative pressure to the second region.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: May 10, 2022
    Inventors: Makoto Nakagawa, Fumihito Nakatani, Kazutaka Hioki
  • Leakage Detector for Fuel Vapor Treatment Device
    Publication number: 20200217276
    Abstract: A leakage detector for a fuel vapor treatment device includes a fuel vapor treatment device that maintains the interior of a treatment system of the fuel vapor treatment device in a sealed state. In addition, the leakage detector includes; a closing valve and shutoff valve that can shut off fluid communication between the fuel tank and the canister to section the interior of the treatment system into a first region including the fuel tank and a second region including the canister. Further, the leakage detector includes an aspirator that applies a negative pressure to the second region.
    Type: Application
    Filed: May 23, 2018
    Publication date: July 9, 2020
    Applicant: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Makoto NAKAGAWA, Fumihito NAKATANI, Kazutaka HIOKI