Patents by Inventor Hiromich Tachikawa

Hiromich Tachikawa 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).

  • Electrophotographic type printing plate precursor
    Patent number: 5079116
    Abstract: An electrophotographic printing plate precursor which comprises a conductive support having provided thereon, in order, an intermediate layer and an electrophotographic photo-receptive layer, wherein the intermediate layer contains at least one compound having at least one amino group and at least one group selected from the group consisting of a carboxyl group, a sulfo group and a hydroxyl group, or a salt of the compound, whereby ink stains are prevented from sticking to the non-image area upon printing.
    Type: Grant
    Filed: August 17, 1990
    Date of Patent: January 7, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiromich Tachikawa, Hiroaki Yokoya, Sadao Osawa