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US 4,783,387 AGranted
Photosensitive member comprising disazo pigment
AssigneeMinolta Camera Kabushiki Kaisha
InventorHideaki Ueda
Life of this patent
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Abstract
The present invention provides a new photosensitive member, in which a specific disazo pigment is used as a photoconductive material, which is excellent in whole static properties, especially in sensitivity.
Claims7
A photosensitive member having a photosensitive layer on an electroconductive substrate, said photosensitive layer containing a disazo pigment which is expressed by the following general formula (I) ##STR27## wherein:
- A represents an aromatic hydrocarbon group or heterocyclic group, which can be formed in a bond by means of a bonding group;
- Z represents a residual group which forms a polycyclic bond group/heterocyclic group by condensation with a benzene ring and which can have a substitution group;
- R.sub.1 represents an alkyl group, aryl group or heterocyclic group, each of which can have a substitution group;
- and X represents a nitrogen atom which can have oxygen, sulfur, and/or a substitution group.
1 more element
Dependencies are inferred from the claim text.