Patents by Inventor Keiji Usuda

Keiji Usuda 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).

  • FLOOR MAT AND PROCESS FOR MANUFACTURING SAME
    Publication number: 20090191382
    Abstract: A floor mat (10) consisting of two or more porous material layers (1, 2, 3), wherein a boundary surface between a porous material layer constituting a reverse side layer (1) and another porous material layer (2) adjacent to the porous material layer is composed of an adhesive surface and a non-adhesive surface, the non-adhesive surface is a non-contact surface, and an independent space (4) is formed between the porous material layer constituting the reverse side layer and the porous material layer adjacent thereto, is disclosed.
    Type: Application
    Filed: December 24, 2008
    Publication date: July 30, 2009
    Applicant: Japan Vilene Company, Ltd.
    Inventor: Keiji Usuda