Patents by Inventor Genzo Kato

Genzo Kato 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).

  • Anti-slipping agent for frozen road surface and spreading method thereof, and apparatus for spreading the anti-slipping agent for frozen road surface
    Patent number: 6659683
    Abstract: An anti-slipping agent for a frozen road surface is provided by crushing a stone having flat-crushability such as black slate into flat-crushed pieces of a required grain size. Furthermore, a method for spreading an anti-slipping agent for a frozen road surface is provided in which the anti-slipping agent for a frozen road surface is heated and then spread onto the frozen road surface. Further an apparatus is provided for spreading an anti-slipping agent for a frozen road surface onto a frozen road surface, which has a hopper, a heater and a spreader.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: December 9, 2003
    Assignee: Kohyu Sangyo Yugen Kaisha
    Inventors: Chisato Yamamoto, Hideki Onodera, Genzo Kato