Patents by Inventor Katsumi Damion

Katsumi Damion 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).

  • Phthalocyanine mixed crystal and electrophotographic photoreceptor containing the same
    Patent number: 5336578
    Abstract: A novel phthalocyanine mixed crystal comprising a dihalogenotin phthalocyanine and a halogenogallium phthalocyanine and an electrophotographic photoreceptor containing the same are disclosed. The phthalocyanine mixed crystal preferably has an intense X-ray diffraction peak at a Bragg angle (2.theta..+-.0.2.degree.) of 26.9. The phthalocyanine mixed crystal is useful as a charge generating material which provides an electrophotographic photoreceptor excellent in sensitivity, stability on repeated use, and environmental stability.
    Type: Grant
    Filed: January 8, 1993
    Date of Patent: August 9, 1994
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Katsumi Nukada, Akira Imai, Katsumi Damion, Masakazu Iijima