Patents by Inventor Mariko KAWASE

Mariko KAWASE 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).

  • Publication number: 20220228705
    Abstract: An accessory component mounting structure includes a tubular pump mounting portion provided in a canister and a purge pump having a motor unit that generates heat. The purge pump is inserted into the internal space of the pump mounting portion and is mounted by snap-fitting. A gap passage extending from an opening side of the pump mounting portion to the rear side thereof is provided between the pump mounting portion and the purge pump. A first communication hole in fluid communication with the gap passage and the outside is provided in the pump mounting portion.
    Type: Application
    Filed: June 19, 2020
    Publication date: July 21, 2022
    Inventors: Mariko KAWASE, Naohito BUSEKI, Yoshihiko HONDA
  • Publication number: 20220205417
    Abstract: An evaporated fuel treatment apparatus includes an electrically-operated valve disposed between a full tank control valve and an atmosphere open port and a control unit that controls the electrically-operated valve, and the control unit performs valve-closing control that fully closes the electrically-operated valve when a valve-closing condition is satisfied after the start of fuel supply, in which a value measured by a fuel volume measurement unit is equal to or greater than a first predetermined value determined in advance and a value detected by a pressure sensor is equal to or greater than a second predetermined value determined in advance.
    Type: Application
    Filed: June 9, 2020
    Publication date: June 30, 2022
    Inventors: Naohito BUSEKI, Mariko KAWASE
  • Publication number: 20220112855
    Abstract: A leakage detector for fuel vapor treatment device is configured to diagnose a leakage of a fuel vapor in a vapor path based on an internal pressure change of the vapor path with the vapor path functioning as a closed space. The leakage detector performs the leakage diagnosis of the vapor path by correcting the effect of the pressure of the fuel vapor with regards to the internal pressure change. The leakage detector comprises a vaporization promoting device and is configured to determine whether the fuel vapor in the gas space of a fuel pump has reached a saturated state.
    Type: Application
    Filed: September 28, 2021
    Publication date: April 14, 2022
    Inventors: Mariko KAWASE, Yuya TANIDA, Masanobu SHINAGAWA