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US 4,307,167 AGranted
Layered electrophotographic plate having tetramethyl benzidene based disazo dye
AssigneeInternational Business Machines Corporation
InventorsLarry D. Bowden, Robert B. Champ, Michael T. Moore
Life of this patent
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Abstract
A layered electrophotographic plate having a triaryl pyrazoline containing charge transport layer and a charge generation layer having a photogenerating dye of the composition: ##STR1##
Claims6
An electrophotographic element, comprising:
- an electrically conductive layer;
- a charge generation layer adjacent said conductive layer, responsive to actinic radiation to generate an electron-hole pair, and having the composition ##STR9## and a charge transport layer adjacent the charge generation layer.
A layered electrophotographic plate having a charge transport layer and a charge generation layer containing the photoactive, tetramethylbenzidine based dye ##STR11##
Dependencies are inferred from the claim text.