Patents Represented by Attorney Gidon Stern

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  • Mixture of binder materials for use in connection with a charge transport layer in a photoconductor
    Patent number: 4030923
    Abstract: This invention relates to an improvement in photoconductive compositions of layered electrophotographic plates and related electrophotographic processes and particularly in the charge transport layer thereof which includes a tri-aryl pyrazoline compound in conjunction with a binder material wherein the improvement comprises the use of a tri-aryl pyrazoline compound and a mixture of binder materials comprising about 3 to 25% by weight acrylic resin and about 75 to 97% by weight polycarbonate.
    Type: Grant
    Filed: December 11, 1975
    Date of Patent: June 21, 1977
    Assignee: International Business Machines Corporation
    Inventors: Donald Lester Krause, Kenneth Dale Presley