Barkev Keoshkerian, George Liebermann, Cheng Kuo Hsiao, James D Mayo, Dasarao K Murti, Sandra J Gardner: Method of making hydroxygallium phthalocyanine type V photoconductive imaging members. Xerox Corporation, E D Palazzo, January 9, 1996: US05482811 (145 worldwide citation)

A process for the preparation of hydroxygallium phthalocyanines which comprises hydrolyzing a gallium phthalocyanine precursor pigment by dissolving said hydroxygallium phthalocyanine in a strong acid and then reprecipitating the resulting dissolved pigment in basic aqueous media; removing any ionic ...

Mohammad Esteghamatian, Dasarao K Murti, C Geoffrey Allen, Ah Mee Hor: Photoconductive imaging members. Xerox Corporation, E O Palazzo, May 26, 1998: US05756245 (112 worldwide citation)

A photoconductive imaging member comprised of a hydroxygallium phthalocyanine photogenerator layer, a charge transport layer, a barrier layer, a photogenerator layer comprised of a mixture of bisbenzimidazo(2,1-a-1',2'-b)anthra(2,1,9-def:6,5,10-d'e'f')diisoquinoline -6,11-dione and bisbenzimidazo(2, ...

Richard L Schank, Dale S Renfer, William W Limburg, Brendan W Kunzmann, Damodar M Pai: Compositions and photoreceptor overcoatings containing a dihydroxy arylamine and a crosslinked polyamide. Xerox Corporation, December 30, 1997: US05702854 (72 worldwide citation)

An electrophotographic imaging member including a supporting substrate coated with at least a charge generating layer, a charge transport layer and an overcoating layer, said overcoating layer comprising a dihydroxy arylamine dissolved or molecularly dispersed in a crosslinked polyamide matrix. The ...

Robert C U Yu: Multilayered photoreceptor with anti-curl containing particulate organic filler. Xerox Corporation, Oliff & Berridge, June 4, 1991: US05021309 (72 worldwide citation)

In an electrophotographic imaging device, material for an exposed anti-curl layer has organic fillers dispersed therein. The fillers provide coefficient of surface contact friction reduction, increased wear resistance, and improved adhesion of the anti-curl layer, without adversely affecting the opt ...

Richard L Schank, Damodar M Pai, John F Yanus, Dale S Renfer, Paul J DeFeo, William W Limburg: Layered photoreceptor with overcoat containing hydrogen bonded materials. Xerox Corporation, November 29, 1994: US05368967 (70 worldwide citation)

An electrophotographic imaging member comprising a substrate, a charge generating layer, a charge transport layer, and an overcoat layer comprising a small molecule hole transporting arylamine having at least two hydroxy functional groups, a hydroxy or multihydroxy triphenyl methane and a polyamide ...


Hiroshi Ikuno, Hiroshi Nagame, Tetsuro Suzuki, Hidetoshi Kami, Jun Aoto, Hiroshi Tamura, Narihito Kojima, Tatsuya Niimi: Electrophotographic photoconductor. Ricoh Company, Oblon Spivak McClelland Maier & Neustadt P C, February 16, 1999: US05871876 (66 worldwide citation)

An electrophotographic photoconductor has an electroconductive support and a photoconductive layer formed thereon, which contains a charge transport material with a polycarbonate structure having a triarylamino group at least on the main chain or side chain thereof, and a charge generation material ...