Patents by Inventor Daijou Tomihisa

Daijou Tomihisa 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).

  • Photoconductive paint and electrophotographic photosensitive body employing it
    Patent number: 5968694
    Abstract: The present invention provides photoconductive paints which have excellent dispersability and dispersion stability and which allow formation of coatings with high coating strength and excellent smoothness.The invention relates to photoconductive paint composed primarily of an inorganic photoconductive material and a binding resin formed on a conductive substrate, wherein the binding resin contains compound fine particles (A) and a resin (B) as defined below, in a solid weight ratio of compound fine particles (A)/resin (B) in the range of 0.5/9.5-4.0/6.0.The compound fine particles (A) have an organic polymer bound to surfaces of inorganic fine particles, and the resin (B) is a resin composition obtained by polymerizing an acrylic monomer mixture, the resin having an acid value of 2.0-12.0.
    Type: Grant
    Filed: April 28, 1998
    Date of Patent: October 19, 1999
    Assignees: Iwatsu Electro Co., Ltd., Nippon Shokubai
    Inventors: Hideki Sakai, Takafumi Hirano, Daijou Tomihisa, Shigefumi Kuramoto