Patents by Inventor Miwako Yamamoto

Miwako Yamamoto 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).

  • Conductive polyurethane foam and its manufacture
    Patent number: 5591482
    Abstract: A method of manufacturing a conductive polyurethane foam in which the polymerization is made easy, the refinement of pyrrole or the like is not required, the recovery rate of a solvent is enhanced, and the pre-treatment is not required at all; and a conductive polyurethane foam having excellent performances. This method includes a process: of coating an oxidizer solution (methanol solution containing FeCl.sub.3 and FeCl.sub.
    Type: Grant
    Filed: February 17, 1994
    Date of Patent: January 7, 1997
    Assignee: Inoac Corporation
    Inventors: Fei-feng He, Toshihiro Yamamoto, Miwako Yamamoto