Abstract: A photoconductor for electrophotography comprises a substrate and a photosensitive layer formed thereon and including a novel hydrazone compound as a charge transporting substance. The hydrazone compound is represented by the following general formula: ##STR1## wherein, each of R.sub.1, R.sub.2 and R.sub.3 stands for any one of an alkyl group, an alkenyl group, an aralkyl group and an aryl group, which groups may be or not may be substituted, R.sub.4 stands for any one of a hydrogen atom, a halogen atom, an alkyl group, an alkenyl group, an aralkyl group and an aryl group, which groups may be or not may be substituted an n stands for an integer of 0 to 1.

Abstract: A photoconductor for electrophotography comprises a substrate and a photosensitive layer formed on the substrate and including a novel tetrakisazo compound. The one type of the tetrakisazo compound is represented by the following general formula. ##STR1## Wherein A stands for a coupler residual group and R stands for one of a hydrogen atom, an alkyl group and an aryl group which may have a substituent group.

Abstract: A photosensitive member for electrophotography has a photosensitive layer provided on a conductive layer. The photosensitive layeer contains a hydrazone compound represented by the following general formula (I): ##STR1## wherein R.sub.1 stands for an aryl group which may have a substituent(s); each of R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 stands for a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, a hydroxy group, a nitro group, an allyl group, an aryl group which may have a substitutent(s), or an aralkyl group; and n stands for an integer of 0 to 1.

Abstract: An electrophotographic photosensitive material includes a photosensitive layer containing a charge transporting substance comprising a novel hydrazone compound or derivative. A hydrazone compound is represented by the following general formula: ##STR1## wherein R.sub.1 stands for an aryl group which may have a substituent(s); each of R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 stands for a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, a hydroxy group, a nitro group, an allyl group, an aryl group, or an aralkyl group, both of which aryl group and aralkyl group may have a substituent(s); and n stands for an integer of 0 or 1.

Abstract: A photoconductor for electrophotography comprises a novel azulenium compound as a charge generating substance. An azulenium compound is represented by the following general formula: ##STR1## Wherein, each of R.sub.1 to R.sub.9 stands for a hydrogen atom, a halogen atom, an alkoxy group, or an alkyl group, an aryl group, both of which may have a substituent(s), and X.sup..crclbar. stands for an anion residual group.

Abstract: A photoconductor for electrophotography comprises an electrically conductive substrate and a laminate formed on the substrate. The laminate includes a charge generating layer including a specific squarylium compound as a charge generating substance and a charge transporting layer including a hydrazone compound. One type of the specific squarylium compound is represented by the following general formula. ##STR1## Wherein, each of R1, R2, R5 and R6 stands for one of an alkyl group, an aralkyl group and alkenyl group, each of which groups may be or not may be substituted, or R1, forms a ring together with R2, R5 forms a ring together with R6, each of R3 and R4 stands for one of hydrogen atom, a halogen atom, a hydroxy group, an alkyl group and an alkoxy group.

Abstract: The photoconductor for electrophotography comprises a novel hydrazone compound as a charge transporting substance. The hydrazone compound is represented by the following general formula: ##STR1## wherein, R.sub.1 stands for a hydrogen atom, a halogen atom, a hydroxy group, an alkoxy group or a nitro group, each of R.sub.2, R.sub.3 and R.sub.4 stands for an aryl group, an alkyl group, an aralkyl group, each of which may have a substituent(s), and at least one of R.sub.2, R.sub.3 and R.sub.4 stands for a thenyl group which may have a substituent.

Abstract: The photoconductor for electrophotography comprises a novel amino compound as a charge transporting substance. The amino compound is represented by the following general formula: ##STR1## wherein, R.sub.1 stands for one of a hydrogen atom, a halogen atom, an alkyl group, a hydroxy group and an alkoxy group, each of R.sub.2, R.sub.3, R.sub.4 and R.sub.5 stands for one of an alkyl group, an aryl group, a thienyl group, an aralkyl group and an alkenyl group, each of which groups may be or not may be substituted and further at least one of R.sub.2 and R.sub.3 stands for thenyl group and n stands for an integer of 0, 1 or 2.

Abstract: A photoconductor for electrophotography comprises a substrate and a photosensitive layer formed on the substrate and including a novel azo compound. The one type of the azo compound is represented by the following general formula. ##STR1## Wherein Cp stand for a coupler residual group and R.sub.1 stand for one of a hydrogen atom, a lower alkyl group, a lower alkoxy group and carbamoyl group.

Abstract: A photoconductor for electrophotography, including an electroconductive substrate; and a photosensitive layer formed on the electroconductive substrate and including a nobel azo compound or disazo compound as a charge generating substance. An azo compound is represented by the following general formula: ##STR1## wherein each of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 stands for a hydrogen atom, a halogen atom, a hydroxy group, an alkyl group, an alkoxy group, an allyl group, an aryl group, an aralkyl group, a carboxyl group or an ester group, and C.sub.p stands for a residual group of a coupler.

Abstract: A photosensitive member for electrophotography which comprises a photosensitive layer containing at least one member of the group consisting of thiophene structure-containing azo compounds having one of the general formulae (I) to (X): ##STR1## wherein all the symbols are defined in the specification.

Abstract: A photoconductor for electrophotography comprising a novel hydrazone compound or derivative as a charge transporting substance. A hydrazone compound is represented by the following general formula: ##STR1## wherein, each of R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 stands for a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, a hydroxy group, a nitro group, an allyl group, or an aryl group which may have a substituent(s) or an amino group which may have a substitutent(s); and n stands for an integer of 0, 1 or 2.

Abstract: A photoconductor for electrophotography comprises a novel disazo compound as a charge generating substance. A disazo compound is represented by the following general formula: ##STR1## wherein, each of Ar.sub.1 and Ar.sub.2 stands for an aromatic hydrocarbon group or an aromatic heterocyclic group, both of which may have a substituent(s),each of R.sub.1 and R.sub.2 stands for an hydrogen atom or an alkyl group or an aryl group, a heterocyclic group which may have a substituent(s); andC.sub.p stands for a coupler residual group.

Abstract: A photoconductor for electrophotography comprising a novel squarylium as a charge generating substance. A squarylium compound is represented by the following general formula: ##STR1## wherein, each of R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 stands for a hydrogen atom, a halogen atom, an alkyl group, an aryl group, or a nitro group, and each of R.sub.7 and R.sub.8 stands for a hydrogen atom or a hydroxy group.

Abstract: A photoconductor for electrophotography comprises a novel azo compound as a charge generating substance. An azo compound is represented by the following general formula: ##STR1## wherein, X.sub.1 stands for an alkyl group which may have a substituent(s) or a phenyl group which may have a substituent(s), X.sub.2 stands for a hydrogen atom, a cyano group, a carbamoyl group, an ester group, an acetyl group or a propyonyl group, each of X.sub.3 and X.sub.4 stands for a hydrogen atom, a halogen atom, a nitro group, an alkoxy group or an alkyo group which may have a substituent(s), and D stands for a substituent.

Abstract: An electrophotographic photosensitive material is disclosed, wherein the electrophotographic photosensitive material comprises a photosensitive layer containing at least one hydrazone compound selected from the group consisting of compounds having the general formulae (I) and (II): ##STR1## wherein R.sup.1 is a hydrogen or halogen atom or an alkyl group, an alkoxy group, a nitro group, an acyl group or an amino group and R2 and R3 each represents a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group; ##STR2## wherein R.sup.4 and R.sup.5 each represents a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group and X is a group of the formula ##STR3## in which R.sup.6 to R.sup.

Abstract: An electrophotographic photosensitive material is disclosed, wherein the electrophotographic photosensitive material comprises a photosensitive layer containing at least one thiophene compound selected from the group consisting of compounds having the general formulae (I) and (II): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6, and R.sup.21, R.sup.22, R.sup.23, R.sup.24, R.sup.25 ; and R.sup.26 each represents a hydrogen or halogen atom or a hydroxy group, an alkyl group, a hydroxyalkyl group, an alkoxy group, an allyl group, a vinyl group, an acyl group, a formylalkyl group, an acyloxy group, an alkoxycarbonyl group, an aryl group, a cyano group, a nitro group, an amino group, an alkylamino group or an arylamino group and n is an integer of 1, 2, 3, 4 or 5.