Patents by Inventor Yasumasa Senoh

Yasumasa Senoh 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).

  • Patent number: 4804506
    Abstract: A method for manufacturing a multihardness foamed article, including the steps of, placing a mold for foaming such that its bottom surface is inclined with respect to the horizontal plane, pouring a first liquid formulation which will form a portion having a certain hardness designed to constitute the surface area of the foamed article at or adjacent to a higher point of the inclined bottom surface, and allowing the formulation to flow and spread over the entire bottom surface as a continuous thin layer while sticking at its undersurface to the bottom surface, immediately after pouring of the first formulation, pouring a second liquid formulation which will form another portion of another hardness designed to constitute a portion other than the surface area of the foamed article at or adjacent to the higher point, and allowing the second formulation to flow and spread over the flowing and spreading first formulation as a second continuous thin layer which will not commingle with the first layer, and allowing
    Type: Grant
    Filed: June 29, 1987
    Date of Patent: February 14, 1989
    Assignee: Namba Press Works Co., Ltd.,
    Inventors: Tsuneyuki Okamoto, Yasuyuki Toda, Mitsuo Katayama, Yasumasa Senoh