Patents by Inventor Tetsumasa KAWAKAMI

Tetsumasa KAWAKAMI 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).

  • Fuel tank units
    Patent number: 11511621
    Abstract: A fuel tank unit includes a lid member configured to close an opening formed on a fuel tank. The fuel tank also includes an upper unit attached to the lid member and including a combination valve device configured to be introduced into the fuel tank via the opening formed on the fuel tank and configured to function as an evaporated fuel control valve and a full limit valve. The lid member includes a cylindrical protective case configured to protect the combination valve device of the upper unit when the combination valve device is introduced into the fuel tank via the opening. The protective case is configured to entirely enclose an outer circumferential surface of the combination valve device with a space therebetween.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: November 29, 2022
    Assignee: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Junichi Noba, Kensuke Niwa, Tetsumasa Kawakami
  • Fuel Tank Units
    Publication number: 20210061090
    Abstract: A fuel tank unit includes a lid member configured to close an opening formed on a fuel tank. The fuel tank also includes an upper unit attached to the lid member and including a combination valve device configured to be introduced into the fuel tank via the opening formed on the fuel tank and configured to function as an evaporated fuel control valve and a full limit valve. The lid member includes a cylindrical protective case configured to protect the combination valve device of the upper unit when the combination valve device is introduced into the fuel tank via the opening. The protective case is configured to entirely enclose an outer circumferential surface of the combination valve device with a space therebetween.
    Type: Application
    Filed: August 25, 2020
    Publication date: March 4, 2021
    Applicant: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Junichi NOBA, Kensuke NIWA, Tetsumasa KAWAKAMI