Patents by Inventor Hideo Soejima

Hideo Soejima 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: 5180617
    Abstract: A porous sheet material is inserted into a back side of a foam base material at a convex section and forces a mat-shaped fiber reinforcing material set in a mold toward a facing material during molding. Alternatively, an impregnated sheet material is inserted between the facing material and the fiber reinforcing material at the convex section so that a molding material for the foam base material is impregnated into the impregnated sheet material during molding. Further, a concave section is molded on the back side of the foam base material at the convex portion by a mold projecting section of the mold. That is, the fiber reinforcing material set in the mold is forced toward the facing material by the mold projecting section during molding.
    Type: Grant
    Filed: May 6, 1992
    Date of Patent: January 19, 1993
    Assignee: Nishikawa Kaisei Co., Ltd.
    Inventors: Yasuo Takeuchi, Mutsuo Fujii, Hideo Soejima