Patents by Inventor Tohru Masatomi

Tohru Masatomi 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).

  • Method of manufacturing a polysiloxane charge transporting material
    Patent number: 5840816
    Abstract: The invention provides a method for manufacturing a polysiloxane resin with charge transporting property by uniformly dissolving a charge transporting material to a practical concentration in a polysiloxane resin. The charge transporting material that is dissolved in the polysiloxane resin is an aromatically substituted tertiary amine which has been modified by substitution of one or more of the aromatic groups with a hydrocarbon group containing a silyl group with hydrolyzable substituents.
    Type: Grant
    Filed: November 4, 1996
    Date of Patent: November 24, 1998
    Assignees: Dow Corning Toray Silicone Co., Ltd., Dow Corning Asia, Ltd.
    Inventors: Hideki Kobayashi, Nobuo Kushibiki, Tohru Masatomi, Kikuko Takeuchi