Patents by Inventor Mitsutoshi Kitamura

Mitsutoshi Kitamura 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).

  • Electroconductive compositions
    Patent number: 4663084
    Abstract: A novel metalo-phthalocyanine or an alkyl ester thereof in which each of two benzene nuclei of the four benzene nuclei condensed in the phthalocyanine ring has a carboxyl or alkoxy carbonyl radical attached thereto is well compatible with an organic polymer and thus provides an electroconductive polymer composition which may be formed into films or suitable articles.
    Type: Grant
    Filed: November 1, 1984
    Date of Patent: May 5, 1987
    Assignee: TDK Corporation
    Inventors: Hirofusa Shirai, Kenji Hanabusa, Mitsutoshi Kitamura, Nobumasa Hojo, Okikazu Hirabaru