Patents by Inventor Saburo Wakizaka

Saburo Wakizaka 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).

  • Asphalt/polyol emulsion and process for preparation thereof
    Patent number: 4902349
    Abstract: An asphalt/polyol emulsion is prepared from asphalt and polyol which are mixed and emulsified with a surface active agent and the plasticizer, by utilizing the behavior of a plasticizer according to the polymer solution theory and the surface-modifying effect of the plasticizer according to the surface chemistry.
    Type: Grant
    Filed: September 21, 1987
    Date of Patent: February 20, 1990
    Assignee: Toa Dora Kogyo Co., Ltd.
    Inventors: Saburo Wakizaka, Hiraku Hayasaka, Kazuki Hashimoto, Kentaro Shiojiri, Toshiaki Suzuki