Patents by Inventor Toshihisa Ikai

Toshihisa Ikai 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).

  • Seat structure
    Publication number: 20070278842
    Abstract: A seat structure includes a board that has a portion rolled up on a periphery of the board. The portion rolled up has a closed cross section with a generally polygonal cross sectional profile.
    Type: Application
    Filed: May 9, 2007
    Publication date: December 6, 2007
    Inventors: Toshihisa Ikai, Mitsugu Udagawa, Kiyoyuki Makino