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US 5,314,775 AGranted
Photosensitive member comprising a diamino compound
AssigneeMinolta Camera Kabushiki Kaisha
InventorHideaki Ueda
Life of this patent
Estimating the term…
Abstract
The present invention provides a new diamino compound represented by the following general formula [I]. ##STR1## The present invention provides also a photosensitive member and an electroluminescence device both of which comprise the diamino compound of the general formula [I] as a charge transporting material.
Claims9
A photosensitive member having a photosensitive layer on an electrically conductive substrate, characterized by that the photosensitive layer comprises a diamino compound represented by the following general formula [I]:
- ##STR18## in which Ar.sub.1, Ar.sub.2, Ar.sub.3 and Ar.sub.4 represent respectively an alkyl group, an aralkyl group, an aryl group, a biphenyl group or a heterocyclic group, each of which may have a substituent;
- R.sub.1, R.sub.2, R.sub.3 and R.sub.4 represent respectively a hydrogen atom, an alkyl group, an alkoxy group or a halogen atom;
- X represents --O--, --S-- or ##STR19## in which R.sub.5 and R.sub.6 represent respectively a hydrogen atom, an alkyl group or an aryl group.
Dependencies are inferred from the claim text.