Patents by Inventor Hisakazu Takagishi

Hisakazu Takagishi 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).

  • Coater blades and their manufacturing methods
    Patent number: 6059881
    Abstract: A coater blade and backing roll combination contains a coater blade having an elastic steel blade with a wear-resistant coating formed thereon. The wear-resistant coating has a hardness greater than that of the elastic steel blade and is provided on an edge of the blade to define a coater surface for contacting with a moving surface of coated paper on the backing roll. The backing roll has a concave outer surface having a curvature corresponding to a quadratic equation and the coater surface has a concave curvature corresponding to the quadratic equation.
    Type: Grant
    Filed: August 4, 1993
    Date of Patent: May 9, 2000
    Assignee: Nomura Techno Research Kabushiki Kaisha
    Inventors: Hirotoshi Nomura, Keiji Nakayama, Hisakazu Takagishi, Tokumi Ikeda