Patents by Inventor Masako Matsura

Masako Matsura 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).

  • Foam dispensing pump container
    Patent number: 5443569
    Abstract: A foam dispensing pump container, for dispensing foam by mixing air pumped from an air cylinder by an air piston having suction holes in its upper wall and a foamable liquid pumped from a liquid cylinder by a liquid piston having an annular projection on its outer wall, provided with an elastic valve member including a cylindrical wall portion, an outer thin annular valve portion extending outwardly from the cylindrical wall portion, and an inner thin annular valve portion extending inwardly from the cylindrical wall portion.
    Type: Grant
    Filed: March 3, 1994
    Date of Patent: August 22, 1995
    Assignee: Daiwa Can Company
    Inventors: Shoji Uehira, Masako Matsura