Patents by Inventor Takako Itoh

Takako Itoh 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).

  • High-strength synthetic resin foam and process of fabrication thereof
    Patent number: 5783610
    Abstract: A structure of synthetic resin foam has a core layer of thermoplastic resin foam and skin layers of non-foamed thermoplastic resin merged with the core layer, and the skin layers gives rise to increase the mechanical strength of the structure.
    Type: Grant
    Filed: June 5, 1996
    Date of Patent: July 21, 1998
    Assignee: Yamaha Corp.
    Inventors: Toshiharu Fukushima, Takako Itoh