Patents by Inventor John F. Yanus
John F. Yanus has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7745082Abstract: A photoreceptor drum is disclosed with a charge transport layer comprising a substituted terphenyl diamine having the structure of Formula (I): wherein R1 and R2 are independently selected from the group consisting of hydrogen, alkyl having from 1 to 10 carbon atoms, halogen, and phenyl; and wherein at least one of R1 and R2 is not hydrogen.Type: GrantFiled: August 9, 2007Date of Patent: June 29, 2010Assignee: Xerox CorporationInventors: Nancy L. Belknap, John F. Yanus, Dale S. Renfer, Anthony M. Horgan, Kendra M. Giza
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Publication number: 20100055588Abstract: The presently disclosed embodiments relate generally to layers that are useful in imaging apparatus members and components, for use in electrostatographic, including digital, apparatuses. More particularly, the embodiments pertain to an improved electrostatographic imaging member having a specific mixture of high mobility molecules in the charge transport layer which exhibits reduced propensity for crystallization while maintaining or improving electrical performance.Type: ApplicationFiled: August 27, 2008Publication date: March 4, 2010Applicant: XEROX CORPORATIONInventors: Nancy Belknap, John F. Yanus, Helen R. Cherniack, David M. Skinner, Kent J. Evans, Edward F. Grabowski
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Patent number: 7670734Abstract: 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: GrantFiled: August 30, 2006Date of Patent: March 2, 2010Assignee: Xerox CorporationInventors: Jin Wu, John F. Yanus, Anthony M. Horgan, Liang-Bih Lin
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Patent number: 7655373Abstract: A method for forming images including a) depositing an electrostatic latent image on a charge retentive surface of a photoreceptor member having a substrate; a charge transport layer with charge transport materials; and an overcoat layer positioned on the charge transport layer, wherein the overcoat layer includes a crosslinkable alcohol-soluble polyamide; and wherein the overcoat layer further includes additives having titanium dioxide, silica, a crosslinking agent, a deletion control agent, and a charge transport molecule; and b) applying a developer material via a development component to the charge-retentive surface to develop the electrostatic latent image to form a developed image on the charge-retentive surface, wherein the developer material comprises emulsion aggregation toner, and further wherein at least one of the additives create a texturized surface on the charge retentive surface thereby reducing the contact area between the emulsion aggregation toners and the charge retentive surface enablingType: GrantFiled: December 14, 2007Date of Patent: February 2, 2010Assignee: Xerox CorporationInventors: Kenny-Tuan T. Dinh, Timothy J. Fuller, Paul J. DeFeo, Damodar M. Pai, John F. Yanus, Linda L. Ferrarese, Cindy C. Chen
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Patent number: 7648810Abstract: An electrophotographic imaging member comprises a substrate, an electrophotographic imaging layer and an overcoat layer comprising a cross-linkable polymer and a hole transport material, wherein the overcoat layer provides at least one of solvent resistance and hydrocarbon resistance to the electrophotographic imaging layer.Type: GrantFiled: September 14, 2006Date of Patent: January 19, 2010Assignee: Xerox CorporationInventors: John F. Yanus, Kenny-Tuan T. Dinh, Dale S. Renfer, Nancy L. Belknap, Anthony M. Horgan
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Patent number: 7645555Abstract: An electrophotographic photoreceptor and method for forming a photoreceptor is disclosed which is provided with an anticorrosion layer on the interface between the supporting substrate surface and the undercoat layer. The photoreceptor has a high mechanical strength and minimizes defects in print for longer periods of time.Type: GrantFiled: April 8, 2009Date of Patent: January 12, 2010Assignee: Xerox CorporationInventors: Liang-Bih Lin, Philip G. Perry, Andronique Ioannidis, William G. Herbert, David M. Skinner, Jin Wu, Kendra Michele Giza, Nancy Belknap, Yonn Rasmussen, Geoffrey M. T. Foley, John F. Yanus, Jennifer Y. Hwang, Robert P. Altavela
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Publication number: 20090325094Abstract: Provided is an imaging member such as photoreceptor comprising a substrate, a charge generation layer, a first charge transport layer, a second charge transport layer, and an optional overcoat layer. The first charge transport layer is formed from a first CTL formulation comprising an aromatic monoamine and a first polymeric film forming binder material. The second charge transport layer is formed from a second CTL formulation comprising aromatic diamine and a second polymeric film forming binder material. The imaging member has gained improved properties such as removal of anti-curl layer, desirable structural flatness, electrical properties, mechanical robustness, flexibility, longevity, and copy image qualities over extended use, among others.Type: ApplicationFiled: September 16, 2009Publication date: December 31, 2009Applicant: Xerox CorporationInventors: Yuhua Tong, John F. Yanus, Jin Wu, Steven M. Sterling, Susan M. VanDusen
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Patent number: 7618757Abstract: Provided is an imaging member such as photoreceptor comprising a substrate, a charge generation layer, a first charge transport layer, a second charge transport layer, and an optional overcoat layer. The first charge transport layer is formed from a first CTL formulation comprising an aromatic monoamine and a first polymeric film forming binder material. The second charge transport layer is formed from a second CTL formulation comprising aromatic diamine and a second polymeric film forming binder material. The imaging member has gained improved properties such as removal of anti-curl layer, desirable structural flatness, electrical properties, mechanical robustness, flexibility, longevity, and copy image qualities over extended use, among others.Type: GrantFiled: May 11, 2005Date of Patent: November 17, 2009Assignee: Xerox CorporationInventors: Yuhua Tong, John F. Yanus, Jin Wu, Steven M. Sterling, Susan M. VanDusen
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Publication number: 20090269689Abstract: An imaging member with a unique overcoat composition adapted for forming protective, scratch-resistant overcoats is disclosed. The overcoat composition comprises a binder component that includes particular proportions of a acrylated polyol and propylene glycol. The overcoat composition also comprises a transport agent and a crosslinking agent.Type: ApplicationFiled: July 13, 2009Publication date: October 29, 2009Applicant: Xerox CorporationInventors: Kenny-Tuan Dinh, Dale S. Renfer, Kendra M. Giza, Michael L. Mehan, Susan M. Vandusen, Markus R. Silvestri, John F. Yanus
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Publication number: 20090246665Abstract: A photoconductor containing a photogenerating layer, and at least one charge transport layer, and a top polymeric overcoat layer in contact with, and contiguous to the charge transport layer, and which overcoat layer includes an indium tin oxide.Type: ApplicationFiled: March 31, 2008Publication date: October 1, 2009Applicant: Xerox CorporationInventors: Jin Wu, Kenny-Tuan Dinh, John F. Yanus, Adal Tecleab, June Shujun Peng, Marc J. Livecchi, Linda L. Ferrarese, Edward C. Savage, Gary A. Batt, John J. Wilbert, Robert W. Hedrick
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Publication number: 20090246657Abstract: A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, a charge transport layer, and an overcoat layer that contains a titanocene.Type: ApplicationFiled: March 31, 2008Publication date: October 1, 2009Applicant: XEROX CORPORATIONInventors: Jin Wu, John F. Yanus, Kenny-Tuan Dinh, Kent J. Evans, Min-Hong Fu, Susan M. Vandusen
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Patent number: 7592110Abstract: An imaging member including an optional supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and an overcoating layer in contact with and contiguous to the charge transport, and which overcoating is comprised of an acrylated polyol, a polyalkylene glycol, a crosslinking agent, a hydroxy functionalized siloxane and a charge transport component.Type: GrantFiled: February 13, 2007Date of Patent: September 22, 2009Assignee: Xerox CorporationInventors: Kenny-Tuan Dinh, John F. Yanus, Raymond K. Crandall, Edward J. Radigan, Jr.
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Publication number: 20090214978Abstract: An electrophotographic photoreceptor and method for forming a photoreceptor is disclosed which is provided with an anticorrosion layer on the interface between the supporting substrate surface and the undercoat layer. The photoreceptor has a high mechanical strength and minimizes defects in print for longer periods of time.Type: ApplicationFiled: April 8, 2009Publication date: August 27, 2009Applicant: XEROX CORPORATIONInventors: Liang-Bih LIN, Philip G. PERRY, Andronique IOANNIDIS, William G. HERBERT, David M. SKINNER, Jin WU, Kendra Michele GIZA, Nancy BELKNAP, Yonn RASMUSSEN, Geoffrey M. T. FOLEY, John F. YANUS, Jennifer Y. HWANG, Robert P. ALTAVELA
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Publication number: 20090208856Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer, a charge transport layer, and a top overcoating layer in contact with and contiguous to the charge transport layer.Type: ApplicationFiled: February 19, 2008Publication date: August 20, 2009Applicant: XEROX CORPORATIONInventors: Jin Wu, John F. Yanus, Kenny-Tuan Dinh, Daniel V. Levy
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Patent number: 7572561Abstract: An imaging member with a unique overcoat composition adapted for forming protective, scratch-resistant overcoats is disclosed. The overcoat composition comprises a binder component that includes particular proportions of a acrylated polyol and propylene glycol. The overcoat composition also comprises a transport agent and a crosslinking agent.Type: GrantFiled: February 22, 2006Date of Patent: August 11, 2009Assignee: Xerox CorporationInventors: Kenny-Tuan Dinh, Dale S. Renfer, Kendra M. Giza, Michael L. Mehan, Susan M. Vandusen, Markus R. Silvestri, John F. Yanus
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Publication number: 20090186287Abstract: Disclosed is an electrophotographic photoreceptor having a protective overcoat layer including a polyol binder; a hole transport material; a curing agent; and a surface-treated tin oxide particle filler. Also disclosed is a process for forming a photoreceptor that includes providing a photoreceptor substrate; applying a charge generating layer; applying a charge transport layer; and applying a protective overcoating layer over the substrate; such that the protective overcoat layer includes a polyol binder; a hole transport material; a curing agent; and a surface-treated tin oxide particle filler. Also included is a method of forming an image, including the disclosed photoreceptor.Type: ApplicationFiled: January 23, 2008Publication date: July 23, 2009Applicant: XEROX CORPORATIONInventors: Kathy L. DE JONG, Yu QI, Vladislav SKOROKHOD, Nan-Xing HU, Johann JUNGINGER, Markus SILVESTRI, John F. YANUS, Kenny-Tuan DINH
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Publication number: 20090162766Abstract: A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and an overcoat, and where the overcoat contains at least one of ketal. In embodiments the overcoat layer may include ?-hydroxyketone, ?-diketone, or mixtures thereof.Type: ApplicationFiled: December 20, 2007Publication date: June 25, 2009Applicant: XEROX CORPORATIONInventors: Jin Wu, John F. Yanus, Kenny-Tuan Dinh, Kent J. Evans
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Patent number: 7544453Abstract: The presently disclosed embodiments relate in general to electrophotographic imaging members, such as layered photoreceptor structures, and processes for making and using the same. More particularly, the embodiments pertain to a photoreceptor that incorporates copolymers to that provide electron transporting functionality to improve image quality.Type: GrantFiled: October 11, 2005Date of Patent: June 9, 2009Assignee: Xerox CorporationInventors: T. Edwin Freeman, Nancy Belknap, John F. Yanus
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Patent number: 7534535Abstract: An electrophotographic photoreceptor is disclosed which is provided with an anti-corrosion layer on the interface between the substrate surface and hole blocking layer. The photoreceptor has high mechanical strength and minimizes defects in print for longer periods of time.Type: GrantFiled: November 23, 2004Date of Patent: May 19, 2009Assignee: Xerox CorporationInventors: Liang-Bih Lin, Philip G. Perry, Andronique Ioannidis, William G. Herbert, David M. Skinner, Jin Wu, Kendra Michele Giza, Nancy Belknap, Yonn Rasmussen, Geoffrey M. T. Foley, John F. Yanus, Jennifer Y. Hwang, Robert P. Altavela
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Patent number: 7531110Abstract: A unique solvent system adapted for high speed overcoat applications is disclosed. The solvent system comprises methyl alcohol and monochlorobenzene in a weight ratio of about 6:1 to about 1.5:1, respectively.Type: GrantFiled: October 24, 2005Date of Patent: May 12, 2009Assignee: Xerox CorporationInventors: Raymond K. Crandall, John F. Yanus, Ed J. Radigan, Michael E. Zak