Patents by Inventor Shokei YAMADA

Shokei YAMADA 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 filter device
    Patent number: 11752858
    Abstract: A fuel filter device includes a filter cloth and a skeletal structural member including an inner flange portion positioned inside the filter cloth and a connecting member including an outer flange portion positioned outside the filter cloth, wherein a peripheral edge portion of an opening of the filter cloth is clamped between the inner flange portion and the outer flange portion, the inner flange portion and the outer flange portion jointly defining a center hole and a center bore serving as a communication passage communicating inside of the filter cloth with outside of the filter cloth, and the inner flange portion is provided with a sealing rib to compress the filter cloth to ensure a sealing performance thereof, a welding rib to join the skeletal structural member and the connecting member with each other by welding, and a shifting preventing rib configured to restrict shifting of the filter cloth.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: September 12, 2023
    Assignee: NIFCO INC.
    Inventors: Hiroshi Sasaki, Shokei Yamada, Shohei Matsuda
  • FUEL FILTER DEVICE
    Publication number: 20210347250
    Abstract: A fuel filter device includes a filter cloth and a skeletal structural member including an inner flange portion positioned inside the filter cloth and a connecting member including an outer flange portion positioned outside the filter cloth, wherein a peripheral edge portion of an opening of the filter cloth is clamped between the inner flange portion and the outer flange portion, the inner flange portion and the outer flange portion jointly defining a center hole and a center bore serving as a communication passage communicating inside of the filter cloth with outside of the filter cloth, and the inner flange portion is provided with a sealing rib to compress the filter cloth to ensure a sealing performance thereof, a welding rib to join the skeletal structural member and the connecting member with each other by welding, and a shifting preventing rib configured to restrict shifting of the filter cloth.
    Type: Application
    Filed: October 1, 2019
    Publication date: November 11, 2021
    Inventors: Hiroshi SASAKI, Shokei YAMADA, Shohei MATSUDA