Triamine, Or Diamine Containing Patents (Class 430/58.75)
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Publication number: 20080233503Abstract: A photoconductor containing a supporting substrate, a photogenerating layer, and at least one charge transport layer which contains a fluoroalkyl ester.Type: ApplicationFiled: March 23, 2007Publication date: September 25, 2008Inventors: Jin Wu, Steven D. Bush, Joseph A. Tumminelli, Marc J. Livecchi, Linda L. Ferrarese, Michael A. Morgan, Lanhui Zhang, Lin Ma, John J. Wilbert, Daniel V. Levy, Liang-Bih Lin
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Publication number: 20080227007Abstract: An image forming apparatus including an image bearing member, a charger, an irradiator, and a developing device, wherein the relationships T1?T2 and T2=W/V are satisfied, wherein T1 (msec) represents a real transit time, defined as a value on X-axis of a first flection point, at which a surface potential (Y) of the image bearing member firstly rises up when a time (X) between irradiating the image bearing member and measuring the surface potential of the irradiated portion thereof is shortened, in a graph showing a relationship between X and Y; T2 (msec) represents a charging time; W (mm) represents a charging width of the charger; and V (mm/msec) represents a linear velocity of the image bearing member.Type: ApplicationFiled: March 7, 2008Publication date: September 18, 2008Inventors: Nozomu Tamoto, Hiromi Tada, Yoshinori Inaba, Katsuichi Ohta
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Publication number: 20080220350Abstract: A photoconductor containing a substrate; an undercoat layer thereover wherein the undercoat layer includes an electroconducting component dispersed in a rapid curing polymer matrix; a photogenerating layer, and at least one charge transport layer.Type: ApplicationFiled: March 6, 2007Publication date: September 11, 2008Inventors: Jin Wu, Dennis J. Prosser, Satchidanand Mishra, Liang-Bih Lin, Daniel V. Levy, Lin Ma
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Publication number: 20080220351Abstract: A photoconductor containing a supporting substrate, a photogenerating layer; and at least one charge transport layer where the photogenerating layer contains a photogenerating pigment and a chelating additive or agent of, for example, a ?-diketone, a ketoester, a hydroxyl carboxylic acid, a hydroxyl carboxylic acid ester, a keto alcohol, or an amino alcohol.Type: ApplicationFiled: March 6, 2007Publication date: September 11, 2008Inventors: Jin Wu, Kent J. Evans, Dennis J. Prosser, Liang-Bih Lin, Raymond K. Crandall
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Publication number: 20080220349Abstract: A photoconductor containing a supporting substrate; an undercoat layer comprised of a mixture of an aminosilane and a halogenated polymer; a photogenerating layer; and at least one charge transport layer.Type: ApplicationFiled: March 6, 2007Publication date: September 11, 2008Inventors: Jin Wu, Satchidanand Mishra, Geoffrey M T. Foley, Anthony M. Horgan, Yonn K. Rasmussen, Michael A. Morgan, Kathleen M. Carmichael, Edward F. Grabowski, Liang-Bih Lin
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Patent number: 7413835Abstract: An electrophotographic imaging member having a thermoplastic charge transport layer comprising a charge transport compound, a polycarbonate polymer binder, a particulate dispersion, and a high boiler compatible organic liquid. The disclosed charge transport layer exhibits enhanced wear resistance, excellent photoelectrical properties, and good print quality.Type: GrantFiled: July 14, 2005Date of Patent: August 19, 2008Assignee: Xerox CorporationInventors: Liang-Bih Lin, Robert C. U. Yu, Francisco Lopez, Jin Wu, John S. Chambers
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Publication number: 20080138728Abstract: To provide a latent electrostatic image bearing member including: an outermost surface layer that comprises a compound represented by the following General Formula (1) and a crosslinked resin formed by crosslinking between an isocyanate compound and a reactive charge transporting substance having at least two hydroxyl groups. where R1 and R2 may be identical or different and each represent a substituted or unsubstituted alkyl group; and R3 represents one of alkyl and aryl groups which have at least one hydroxyl group.Type: ApplicationFiled: November 29, 2007Publication date: June 12, 2008Inventors: Akihiro Sugino, Nobuya Mori
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Patent number: 7381511Abstract: A photoreceptor including an electroconductive substrate; a photosensitive layer; and optionally a protective layer, wherein an outermost layer thereof includes a filler, an organic compound having an acid value of from 10 to 700 mg KOH/g and at least one compound selected from the group consisting of compounds having the following formulae (1) and (2): wherein R1 (R3) and R2 (R4) independently represent a substituted or an unsubstituted aromatic hydrocarbon group, or a substituted or an unsubstituted alkyl group, and optionally share bond connectivity to form a heterocyclic group including a nitrogen atom; Ar1 (Ar3) and Ar2 (Ar4) independently represent a substituted or a unsubstituted aromatic ring group; k (K) and m (M) independently represent 0 or an integer of from 1 to 3, wherein k (K) and m (M) are not 0 at the same time; and n (n?) represents an integer of from 1 to 3.Type: GrantFiled: June 1, 2004Date of Patent: June 3, 2008Assignee: Ricoh Company, Ltd.Inventors: Takaaki Ikegami, Tomoyuki Shimada, Yasuo Suzuki, Nozomu Tamoto, Hidetoshi Kami, Yuuji Takana
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Patent number: 7378204Abstract: A photoconductive imaging member containing a photogenerating layer, and a charge transport layer, and wherein the charge transport layer is comprised of an arylamine containing a moiety that minimizes oxidation.Type: GrantFiled: June 15, 2005Date of Patent: May 27, 2008Assignee: Xerox CorporationInventors: Yu Qi, Nan-Xing Hu, Gregory McGuire, Cheng-Kuo Hsiao
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Publication number: 20080107984Abstract: A photoconductor containing an optional supporting substrate, a containing photogenerating layer, at least one thiophosphate containing charge transport layer, and a top overcoating crosslinked polymer layer in contact with and contiguous to the charge transport layer.Type: ApplicationFiled: November 7, 2006Publication date: May 8, 2008Inventors: John F. Yanus, Jin Wu, Kenny-Tuan Dinh, Michael A. Morgan, Anthony M. Horgan, Kathleen M. Carmichael
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Publication number: 20080107979Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer, at least one silanol containing charge transport layer, and a top overcoating layer in contact with and contiguous to the charge transport layer.Type: ApplicationFiled: November 7, 2006Publication date: May 8, 2008Inventors: John F. Yanus, Jin Wu, Kenny-Tuan Dinh, Michael A. Morgan, Anthony M. Horgan
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Publication number: 20080107985Abstract: A photoconductor containing an optional supporting substrate, a silanol containing photogenerating layer, at least one charge transport layer, and a top overcoating layer in contact with and contiguous to the charge transport layer.Type: ApplicationFiled: November 7, 2006Publication date: May 8, 2008Inventors: John F. Yanus, Jin Wu, Kenny-Tuan Dinh, Michael A. Morgan, Anthony M. Horgan
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Publication number: 20080070136Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer, a charge transport layer, and an overcoat layer comprised, for example, of a phenolic resin containing a phenolic charge transport component.Type: ApplicationFiled: September 15, 2006Publication date: March 20, 2008Inventors: Nan-Xing Hu, Yvan Gagnon, Ah-Mee Hor
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Patent number: 7344809Abstract: An imaging member having a charge transport layer is provided. The charge transport layer includes a plurality of charge transport layers coated from solutions of similar or different compositions or concentrations, wherein the upper or additional transport layer(s) comprise a lower concentration of charge transport compound than the first (bottom) charge transport layer. The charge transport compound included in the first (bottom) charge transport layer may either be the same or different from that included in the additional charge transport layers. The charge transport compound in one or more of the layers is dissolved or molecularly dispersed in an electrically inactive polymer material to form a solid solution. In such a construction, the resulting charge transport layer exhibits enhanced cracking suppression, improves wear resistance, provides excellent imaging member electrical performance, and delivers improved print quality.Type: GrantFiled: November 16, 2006Date of Patent: March 18, 2008Assignee: Xerox CorporationInventors: Anthony M. Horgan, Robert C. U. Yu, Satchidanand Mishra, Richard L. Post, Edward F. Grabowski, Kathleen M. Carmichael, John R. Lambie, Houy Jen Yuh, Timothy J. Fuller, John F. Yanus, Markus R. Silvestri, Yuhua Tong, Dale Renfer, Kenny-Tuan Tran Dinh, Geoffrey M.T. Foley
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Publication number: 20080063961Abstract: The presently disclosed embodiments are directed to charge transport layers useful in electrostatography. More particularly, the embodiments pertain to an electrostatographic imaging member comprising a charge transport layer that exhibits improved charge mobility transport.Type: ApplicationFiled: August 10, 2006Publication date: March 13, 2008Applicant: Xerox CorporationInventors: Timothy P. Bender, Gregory McGuire
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Publication number: 20080057425Abstract: A photoconductor containing an optional supporting substrate, a perylene silanol photogenerating layer, and at least one charge transport layer.Type: ApplicationFiled: August 30, 2006Publication date: March 6, 2008Inventors: Jin Wu, Nancy L. Belknap, Liang-Bih Lin
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Publication number: 20080057428Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer thereover, and at least one charge transport layer, and wherein the photogenerating layer contains a chelating agent, and a Type V titanyl phthalocyanine prepared, for example, by dissolving a Type I titanyl phthalocyanine in a solution comprising a trihaloacetic acid and an alkylene halide; adding the mixture comprising the dissolved Type I titanyl phthalocyanine to a solution comprising an alcohol and an alkylene halide thereby precipitating a Type Y titanyl phthalocyanine; and treating the Type Y titanyl phthalocyanine with a monohalobenzene.Type: ApplicationFiled: August 30, 2006Publication date: March 6, 2008Inventors: Jin Wu, John S. Chambers, Francisco J. Lopez, Daniel V. Levy, Liang-Bih Lin
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Publication number: 20080057423Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer comprised of a chelating agent and a titanyl phthalocyanine; and at least one charge transport layer comprised of at least one charge transport component; and wherein a silanol is present in at least one of the photogenerating layer and charge transport layer, and wherein said at least one charge transport component is comprised of wherein X and Y are independently a suitable hydrocarbon, a halogen, or mixtures thereof.Type: ApplicationFiled: August 30, 2006Publication date: March 6, 2008Inventors: Jin Wu, John F. Yanus, Anthony M. Horgan, Liang-Bih Lin
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Patent number: 7326506Abstract: Improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (a) a charge transport material having the formula where Z1 and Z2 comprise, each independently, a bond, a vinyl group, a —CR1?N—NR2— group, or a —CR3?N—N?CR4— group; Y1 and Y2 comprise, each independently, an aromatic group; X1 and X2 are, each independently, a linking group; W1 and W2 are, each independently, a —(CH2)n— group or a —(CH2)n-1—C(?O)— group, where n is an integer between 1 and 10, inclusive; Q1 and Q2 are, each independently, O, S, or NR; and R1, R2, R3, R4, R, R?, and R? comprise, each independently, H, an alkyl group, an alkenyl group, an alkynyl group, an acyl group, a heterocyclic group, or an aromatic group; and (b) a charge generating compound. Corresponding electrophotographic apparatuses and imaging methods are described.Type: GrantFiled: May 28, 2004Date of Patent: February 5, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Nusrallah Jubran, Zbigniew Tokarski, Vytautas Getautis, Juozas V. Grazulevicius, Vygintas Jankauskas, Ingrida Paulauskaite, Jurate Simokaitiene, Albina Stanisauskaite, Valentas Gaidelis
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Publication number: 20080008947Abstract: An imaging member includes a substrate; a charge generation layer positioned on the substrate; at least one charge transport layer positioned on the charge generation layer; and an undercoat layer positioned on the substrate on a side opposite the charge generation layer, the undercoat layer comprising a binder component and a metallic component comprising metal thiocyanate and metal oxide.Type: ApplicationFiled: July 6, 2006Publication date: January 10, 2008Inventors: Jin Wu, Daniel V. Levy, Liang-bih Lin
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Publication number: 20080008950Abstract: An imaging member including a substrate; a charge generation layer positioned on the substrate; at least one charge transport layer positioned on the charge generation layer; and an undercoat layer positioned on the substrate on a side opposite the charge generation layer, the undercoat layer comprising a thiophosphate, and optionally one or more additional undercoat layer components.Type: ApplicationFiled: July 6, 2006Publication date: January 10, 2008Inventors: Jin Wu, Geoffrey M.T. Foley, Satchidanand Mishra, Liang-bih Lin, Anthony M. Horgan, Yonn K. Rasmussen, Kathleen M. Carmichael, Edward F. Grabowski
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Patent number: 7314693Abstract: The present invention relates to an electrophotographic photoconductor comprising a photoconductive layer, a protective layer, and a conductive support, wherein the protective layer is disposed as the outermost layer of the photoconductive layer, and 20% by volume to 60% by volume of fine particles of fluorine-contained resin and at least one compound selected from amine aromatic compounds and hydroxy aromatic compounds are incorporated into the protective layer. According to the present invention, high durability may be achieved, image degradation such as lags may be controlled from the increase of residual potential and decrease of charging, and high quality images may be formed stably even after the prolonged and repeated usage. The present invention also relates to an electrophotographic process, an electrophotographic apparatus and a process cartridge for the electrophotographic apparatus which utilize the electrophotographic photoconductor respectively.Type: GrantFiled: September 13, 2004Date of Patent: January 1, 2008Assignee: Ricoh Company, Ltd.Inventors: Takaaki Ikegami, Shinji Nohsho, Eiji Kurimoto, Hidetoshi Kami, Akihiro Sugino, Yasuyuki Yamashita, Hideo Nakamori, Takeshi Takada
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Publication number: 20070298342Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component wherein the at least one charge transport component is comprised of aryl amine molecules of the formula wherein X and Y are each independently alkyl, alkoxy, aryl, a halogen, and wherein the photogenerating layer contains a titanyl phthalocyanine prepared by dissolving a Type I titanyl phthalocyanine in a solution comprising a trihaloacetic acid and an alkylene halide; adding the mixture comprising the dissolved Type I titanyl phthalocyanine to a solution comprising an alcohol and an alkylene halide thereby precipitating a Type Y titanyl phthalocyanine; and treating the Type Y titanyl phthalocyanine with monohalobenzene.Type: ApplicationFiled: June 22, 2006Publication date: December 27, 2007Inventors: Jin Wu, John F. Yanus, Satish R. Parikh, Anthony M. Horgan, Kent J. Evans, Geoffrey M.T. Foley, Satchidanand Mishra, Markus R. Silvestri, J. Robinson Cowdery-Corvan, David M. Skinner, Edward F. Grabowski, Kathleen M. Carmichael, Yonn K. Rasmussen, Donald J. Goodman, Liang-Bih Lin
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Publication number: 20070292785Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer of at least one charge transport component, at least one polyphenyl thioether of the formula wherein R1, R2, and R3 are independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, substituted alkyl, aryl, alkoxy, and halogen; n is a number of from about 1 to about 10; and a thiophosphate.Type: ApplicationFiled: June 15, 2006Publication date: December 20, 2007Inventors: Jin Wu, Kenny-Tuan Dinh, Kathleen M. Carmichael, Michael S. Roetker, Kent J. Evans, Geoffrey M. T. Foley, Anthony M. Horgan, Yonn K. Rasmussen, Satchidanand Mishra, Edward F. Grabowski, Liang-Bih Lin, Markus R. Silvestri
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Publication number: 20070292786Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer and at least one charge transport layer, and wherein the at least one charge transport layer contains at least one thiophosphate, and wherein the thiophosphate is present in an amount of from about 0.005 to about 0.09 weight percent.Type: ApplicationFiled: June 15, 2006Publication date: December 20, 2007Inventors: Jin Wu, Geoffrey M.T. Foley, Edward C. Savage, Liang-Bih Lin
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Publication number: 20070292782Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer of at least one charge transport component, at least one polyphenyl ether of the formula wherein each R1, R2, and R3 is independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, substituted alkyl, substituted aryl, substituted alkoxy, and halogen, and n is from about 1 to about 10, and a thiophosphate.Type: ApplicationFiled: June 15, 2006Publication date: December 20, 2007Inventors: Jin Wu, Kenny-Tuan Dinh, Kathleen M. Carmichael, Michael S. Roetker, Kent J. Evans, Geoffrey M T. Foley, Anthony M. Horgan, Yonn K. Rasmussen, Satchidanand Mishra, Edward F. Grabowski, Liang-Bih Lin, Markus R. Silvestri
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Publication number: 20070292789Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer of at least one charge transport component, at least one polyphenyl ether of the formula wherein R1, R2, and R3 are independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, substituted alkyl, substituted aryl, substituted alkoxy, and halogen, and n is a suitable number of from about 1 to about 10.Type: ApplicationFiled: June 15, 2006Publication date: December 20, 2007Inventors: Jin Wu, Kenny-Tuan Dinh, Kathleen M. Carmichael, Michael S. Roetker, Kent J. Evans, Geoffrey M.T. Foley, Anthony M. Horgan, Yonn K. Rasmussen, Satchidanand Mishra, Edward F. Grabowski, Liang-Bih Lin
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Publication number: 20070292787Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer, at least one C-ether of the formula wherein R1, R2, R3 and R4 are independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, substituted alkyl, substituted aryl, substituted alkoxy, and halogen, and the sum of n plus m (n+m) is from about 1 to about 10.Type: ApplicationFiled: June 15, 2006Publication date: December 20, 2007Inventors: Jin Wu, Kenny-Tuan Dinh, Kathleen M. Carmichael, Michael S. Roetker, Kent J. Evans, Geoffrey M T. Foley, Anthony M. Horgan, Yonn K. Rasmussen, Satchidanand Mishra, Edward F. Grabowski, Liang-Bih Lin
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Publication number: 20070292792Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer of at least one charge transport component, at least one polyphenyl ether of the formula wherein R1, R2, R3 and R4 are independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, substituted alkyl, substituted aryl, substituted alkoxy, and halogen, and n is a number of from about 1 to about 10; and wherein a thiophosphate is contained in the photogenerating layer.Type: ApplicationFiled: June 15, 2006Publication date: December 20, 2007Inventors: Jin Wu, Kenny Tuan Dinh, Kathleen M. Carmichael, Michael S. Roetker, Kent J. Evans, Geoffrey M. T. Foley, Anthony M. Horgan, Yonn K. Rasmussen, Satchidanand Mishra, Edward F. Grabowski, Liang-Bih Lin, Markus R. Silvestri
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Publication number: 20070292788Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer and at least one charge transport layer of at least one charge transport component, at least one C-ether of the formula wherein R1, R2, R3 and R4 are independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, substituted alkyl, substituted aryl, substituted alkoxy, and halogen, and the sum of n plus m (n+m) is from about 1 to about 10, and an optional antioxidant; and wherein a thiophosphate is contained in the photogenerating layer.Type: ApplicationFiled: June 15, 2006Publication date: December 20, 2007Inventors: Jin Wu, Kenny-Tuan Dinh, Kathleen M. Carmichael, Michael S. Roetker, Kent J. Evans, Geoffrey M. T. Foley, Anthony M. Horgan, Yonn K. Rasmussen, Satchidanand Mishra, Edward F. Grabowski, Liang-Bih Lin, Markus R. Silvestri
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Publication number: 20070292783Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer of at least one charge transport component, at least one C-ether of the formula wherein R1, R2, R3 and R4 are independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, substituted alkyl, substituted aryl, substituted alkoxy, and halogen, and the sum of n plus m (n+m) is from about 1 to about 10, and a thiophosphate.Type: ApplicationFiled: June 15, 2006Publication date: December 20, 2007Inventors: Jin Wu, Kenny-Tuan Dinh, Kathleen M. Carmichael, Michael S. Roetker, Kent J. Evans, Geoffrey M. T. Foley, Anthony M. Horgan, Yonn K. Rasmussen, Satchidanand Mishra, Edward F. Grabowski, Liang-Bih Lin, Markus R. Silvestri
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Publication number: 20070292784Abstract: An imaging member containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer, and wherein the at least one charge transport layer contains at least one thiophosphate.Type: ApplicationFiled: June 15, 2006Publication date: December 20, 2007Inventors: Jin Wu, Satchidanand Mishra, Kent J. Evans, J. Robinson Cowdery-Corvan, Anthony M. Horgan, Geoffrey M. T. Foley, Kathleen M. Carmichael, Liang-Bih Lin
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Publication number: 20070281227Abstract: The present invention is to provide a multilayer type electrophotographic photoconductor capable of stably obtaining a high image quality image over a long term by restraining the exposure memory and the photo memory, and an image forming apparatus comprising such a multilayer type electrophotographic photoconductor. A multilayer type electrophotographic photoconductor comprising a charge generating layer containing at least a charge generating agent on a base member directly or via an intermediate layer, and a charge transporting layer containing at least a charge transporting agent and a binder resin formed successively, wherein the light absorption degree at a 680 nm wavelength light beam in the photoconductive layer of the multilayer type electrophotographic photoconductor is of a value of 0.8 or less, and the light absorption degree at a 450 nm wavelength light beam is of a value of 1.Type: ApplicationFiled: May 24, 2007Publication date: December 6, 2007Inventors: Keiji Maruo, Junichiro Otsubo, Jun Azuma
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Patent number: 7300731Abstract: The present invention relates to new a charge transport layer that includes first charge transport material which is spatially doped with a second charge transport material. The charge transport layer may either be a hole or electron transport layer and is useful in organic electronic devices.Type: GrantFiled: August 10, 2004Date of Patent: November 27, 2007Assignee: E.I. du Pont de Nemours and CompanyInventor: Ying Wang
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Patent number: 7291428Abstract: An electrophotographic imaging member having a charge generating layer and a charge transport layer overlayed thereon is provided. The charge transport layer has a lower surface and an upper surface, wherein the lower surface is in contiguous contact with the charge generating layer. The charge transport layer comprises a film forming polymer binder and a charge transport compound molecularly dispersed or dissolved therein to form a solid solution. The concentration of the charge transport compound in the charge transport layer decreases from the lower surface to the upper surface. In such a construction, the resulting charge transport layer exhibits enhanced cracking suppression, improved wear resistance, excellent imaging member electrical performance, and improved copy print out quality.Type: GrantFiled: December 15, 2006Date of Patent: November 6, 2007Assignee: Xerox CorporationInventors: Satchidanand Mishra, Anthony M. Horgan, Robert C. U. Yu, Dasarao K. Murti, Suresh K. Ahuja
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Publication number: 20070254226Abstract: An imaging member is disclosed with a charge transport layer comprising a terphenyl diamine having the structure of Formula (I): wherein R1 is a methyl group (—CH3) in the ortho, meta, or para position and R2 is a butyl group (—C4H9).Type: ApplicationFiled: July 17, 2006Publication date: November 1, 2007Inventors: John E. Yanus, Markus Silvestri, Dale Renfer, Kenny-tuan Dinh, M. John Hinckel, H. Bruce Goodbrand, Timothy P. Bender
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Publication number: 20070254223Abstract: An imaging member is disclosed with a charge transport layer comprising a dimethyl terphenyl diamine having the structure of Formula (I): wherein n is an integer from 0 to about 18. The resulting imaging member has enhanced performance properties.Type: ApplicationFiled: November 8, 2006Publication date: November 1, 2007Inventors: John F. Yanus, Markus Silvestri
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Patent number: 7205080Abstract: An arylamine compound represented by formula (1). Ar1 represents a phenyl group substitued by a substituted or unsubstituted monovalent polycyclic aromatic hydrocarbon group, and a substituted or unsubstituted monovalent heterocyclic group. Ar2 represents a substituted or unsubstituted arylene group. R1 represents a hydrogen atom, a halogen atom, an alkoxy group, or a substituted or unsubstituted alkyl group. R2 represents a hydrogen atom, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group. R3 and R4 each independently represents a hydrogen atom, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group, at least one of R3 and R4 represents a substituted or unsubstituted aryl group, and R3 and R4 may be bound to form a ring via a single bond or a divalent group. m represents an integral of from 0 to 4.Type: GrantFiled: July 21, 2004Date of Patent: April 17, 2007Assignee: Fuji Xerox Co., Ltd.Inventors: Masahiro Iwasaki, Katsumi Nukada, Mieko Seki
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Patent number: 7195908Abstract: Supports for immobilizing molecules, particularly biomolecules, methods of making such supports, kits, and biomolecular hybridization assay devices are disclosed. The methods, supports and devices include forming a triamine layer on at least a portion of a substrate and attaching a compound to a portion of the substrate.Type: GrantFiled: October 31, 2002Date of Patent: March 27, 2007Assignee: Corning IncorporatedInventor: Mark A. Lewis
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Patent number: 7125633Abstract: An imaging member having a charge transport layer with multiple regions or layers is provided. The charge transport layer includes at least two charge transport layers coated from solutions of different components and concentrations, wherein the second (top) transport layer comprises a lower concentration of different charge transport compound than the first (bottom) charge transport layer. The charge transport compound included in the second (top) charge transport layer is a high mobility hole transport compound. The charge transport compound in each layer is dissolved or molecularly dispersed in an electrically inactive film forming polymer to form a solid solution. In such a construction, the resulting dual charge transport layer exhibits enhanced cracking suppression, improves wear resistance, provides excellent imaging member electrical performance, and delivers improved print quality.Type: GrantFiled: December 12, 2003Date of Patent: October 24, 2006Assignee: Xerox CorporationInventors: Satchidanand Mishra, Houy Jen Yuh, Anthony M. Horgan, Markus R. Silvestri, Robert C. Yu, Yuh Tong, Dale Renfer, Kenny-tuan Dinh, Geoff Foley, Jack Yanus, Timothy Fuller
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Patent number: 7118787Abstract: There is provided a liquid crystal alignment layer comprising an alignment layer; and chemically bound to said alignment layer, a transport material. Also provided are methods for forming the liquid crystal alignment layer and the use thereof in displays for electronic apparatus.Type: GrantFiled: July 1, 2002Date of Patent: October 10, 2006Assignee: University of HullInventors: Mary O'Neill, Stephen Malcolm Kelly, Adam Edward Alexander Contoret, Gary James Richards, David Coates
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Patent number: 7094509Abstract: A photoconductive imaging member comprised of a photogenerating layer, and a charge transport layer containing a binder and a fluoropolymer generated by the free radical polymerization of a fluoroalkyl(methyl)acrylate and an alkyl(methyl)acrylate.Type: GrantFiled: July 18, 2003Date of Patent: August 22, 2006Assignee: Xerox CorporationInventors: Yuhua Tong, Timothy J. Fuller, Cindy C. Chen, John F. Yanus, Robert C. U. Yu, Min-Hong Fu, Lanhui Zhang, Dennis J. Prosser, Susan M. VanDusen
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Patent number: 7033714Abstract: An imaging member having a charge transport layer is provided. The charge transport layer includes a plurality of charge transport layers coated from solutions of similar or different compositions or concentrations, wherein the upper or additional transport layer(s) comprise a lower concentration of charge transport compound than the first (bottom) charge transport layer. The charge transport compound included in the first (bottom) charge transport layer may either be the same or different from that included in the additional charge transport layers. The charge transport compound in one or more of the layers is dissolved or molecularly dispersed in an electrically inactive polymer material to form a solid solution. In such a construction, the resulting charge transport layer exhibits enhanced cracking suppression, improves wear resistance, provides excellent imaging member electrical performance, and delivers improved print quality.Type: GrantFiled: December 16, 2003Date of Patent: April 25, 2006Assignee: Xerox CorporationInventors: Anthony M. Horgan, Robert C Yu, Satchidanand Mishra, Richard L. Post, Edward F. Grabowski, Kathleen M. Carmichael, John R. Lambie
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Patent number: 7018755Abstract: An electrophotographic photoconductor having at least a photosensitive layer on a conductive support, wherein the electrophotographic photoconductor comprising, in the outermost layer thereof: a filler, an organic compound having an acid value of 10–400 mgKOH/g, and at least one of compounds represented by the following general formulas 1 and 2: where R1, R2 are substituted or unsubstituted alkyl groups or aromatic hydrocarbon rings, and may be identical or different. R1, R2 may also be bonded together to form a substituted or unsubstituted heterocycle containing a nitrogen atom. R3, R4, R5 are substituted or unsubstituted alkyl or alkoxy groups, or halogen atoms. Ar is a substituted or unsubstituted aromatic hydrocarbon ring or aromatic heterocycle. n is an integer in the range 2 to 4, and k, l, m are respectively integers in the range 0 to 3. X is an oxygen atom, or a sulfur atom.Type: GrantFiled: September 23, 2003Date of Patent: March 28, 2006Assignee: Ricoh Company, Ltd.Inventors: Takaaki Ikegami, Tomoyuki Shimada, Yasuo Suzuki, Nozomu Tamoto, Hidetoshi Kami
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Patent number: 7005222Abstract: An imaging member having a charge transport layer with multiple regions is provided. The charge transport layer includes a plurality of charge transport layers coated from solutions of similar or different compositions or concentrations, wherein at least the top or uppermost transport layer comprises a lower concentration of charge transport compound than the first (bottom) charge transport layer. The charge transport compound included in the first (bottom) charge transport layer may either be of the same or different compounds from that included in the top or additional charge transport layer(s). The charge transport compound present in each layer may be dissolved or molecularly dispersed in an electrically inactive polymer material to form a solid solution. In such a construction, the resulting charge transport layer exhibits enhanced cracking suppression, improves wear resistance, provides excellent imaging member electrical performance, and delivers improved print quality.Type: GrantFiled: December 16, 2003Date of Patent: February 28, 2006Assignee: Xerox CorporationInventors: Anthony M. Horgan, Satchidanand Mishra, Robert C. Yu, Richard L. Post, Edward F. Grabowski, Kathleen M. Carmichael, John R. Lambie
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Patent number: 6991880Abstract: A member including for example, a substrate, a charge generating layer, a charge transport layer comprising a poly(phenylsilsesquioxane), molecule, and a film forming binder.Type: GrantFiled: July 23, 2002Date of Patent: January 31, 2006Assignee: Xerox CorporationInventors: Yuhua Tong, Timothy J. Fuller, Sean X. Pan, John F. Yanus, Cindy C. Chen, Min-Hong Fu, Dennis J. Prosser, Susan M. VanDusen
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Patent number: 6960418Abstract: Improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (a) a charge transport material having the formula where R1, R2, R3, and R4 are, independently, an alkyl group, an alkaryl group, or an acyl group; Y is an alkyl group, alkaryl group, or aryl group; X is a linking group having the formula —(CH2)m—, branched or linear, where in is an integer between 1 and 20, inclusive, and one or more of the methylene groups is optionally replaced by O, S, C?O, O?S?O, a heterocyclic group, an aromatic group, urethane, urea, an ester group, a NR3 group, a CHR4 group, or a CR5R6 group where R3, R4, R,5 and R6 are, independently, H, hydroxyl group, thiol group, an alkyl group, an alkaryl group, a heterocyclic group, or an aryl group; and E is an epoxy group; and (b) a charge generating compound.Type: GrantFiled: October 23, 2003Date of Patent: November 1, 2005Assignee: Samsung Electronics Co., Ltd.Inventors: Nusrallah Jubran, Zbigniew Tokarski, Vytautas Getautis, Osvaldas Paliulis, Valentas Gaidelis, Edmundas Montrimas
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Patent number: 6958204Abstract: An electrophotographic photosensitive member includes a charge generating material and a charge transfer material. The charge transfer material contains a triarylamine compound synthesized from an amine compound and an aryl halide in the presence of a catalyst comprising a phosphine compound represented by formula (1) and a palladium compound: wherein Ar1 to Ar3 are each independently an alkyl or aryl group which may have a substituent group, and at least one of Ar1 to Ar3 is an aryl group. A process cartridge includes the electrophotographic photosensitive member.Type: GrantFiled: August 25, 2004Date of Patent: October 25, 2005Assignee: Canon Kabushiki KaishaInventors: Takakazu Tanaka, Mitsuhiro Kunieda, Yuka Nakajima, Harunobu Ohgaki
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Patent number: 6946225Abstract: A multi-active electrophotographic charge generation element comprises a conductive support, a charge generation layer (CGL) disposed on the conductive support, and a charge transport layer (CTL) disposed on the charge generation layer. The charge generation layer (CGL) includes a charge-generation material comprising an aggregated or crystalline form of a first dye or pigment and a first polymeric binder. The charge transport layer (CTL) comprises at least one charge-transport agent, a second dye or pigment having absorption in a selected spectral region that at least partially overlaps the absorption of a dissolved non-aggregated or non-crystalline form of the first dye or pigment, and a second polymeric binder. The second dye or pigment in the charge transport layer absorbs radiation in the selected spectral region that is incident on the charge transport layer, thereby shielding the charge generation layer from that radiation and mitigating visible radiation-induced photofatigue.Type: GrantFiled: July 22, 2002Date of Patent: September 20, 2005Assignee: Eastman Kodak CompanyInventors: Albert V. Buettner, Dennis R. Fronheiser, Anne F. Lairmore, David S. Weiss, Jeffrey R. Murray, Marie B. O'Regan
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Patent number: 6861188Abstract: Electrophotographic photoreceptor having a photosensitive layer containing an amino compound selected from formulae 1 to 22 in the specification.Type: GrantFiled: September 6, 2002Date of Patent: March 1, 2005Assignee: Ricoh Company LimitedInventors: Takaaki Ikegami, Yasuo Suzuki, Tomoyuki Shimada, Nozomu Tamoto, Hidetoshi Kami