Patents by Inventor Markus Silvestri
Markus Silvestri 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: 8021811Abstract: 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: GrantFiled: January 23, 2008Date of Patent: September 20, 2011Assignee: 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: 20090269687Abstract: Imaging members useful in electrostatographic apparatuses, including printers, copiers, other reproductive devices, and digital apparatuses. More particularly, imaging members having nano polymeric gel particles embedded into one or more layers of the imaging member that provide for increased mechanical strength and improved wear.Type: ApplicationFiled: July 15, 2009Publication date: October 29, 2009Applicant: XEROX CORPORATIONInventors: Satchidanand Mishra, Yuhua Tong, Kathleen Carmichael, Markus Silvestri, Susan Vandusen, Chieh-Min Cheng, Huoy-Jen Yuh, Cindy Chen, Lanhui Zhang
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Publication number: 20090239166Abstract: Imaging members useful in electrostatographic apparatuses, including printers, copiers, other reproductive devices, and digital apparatuses. More particularly, imaging members having nano polymeric gel particles embedded into one or more layers of the imaging member that provide for increased mechanical strength and improved wear.Type: ApplicationFiled: June 22, 2006Publication date: September 24, 2009Applicant: Xerox CorporationInventors: Satchidanand Mishra, Yuhua Tong, Kathleen Carmichael, Markus Silvestri, Susan Vandusen, Chieh-Min Cheng, Huoy-Jen Yuh, Cindy Chen, Lanhui Zhang
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Patent number: 7582399Abstract: Imaging members useful in electrostatographic apparatuses, including printers, copiers, other reproductive devices, and digital apparatuses. More particularly, imaging members having nano polymeric gel particles embedded into one or more layers of the imaging member that provide for increased mechanical strength and improved wear.Type: GrantFiled: June 22, 2006Date of Patent: September 1, 2009Assignee: Xerox CorporationInventors: Satchidanand Mishra, Yuhua Tong, Kathleen Carmichael, Markus Silvestri, Susan Vandusen, Chieh-Min Cheng, Huoy-Jen Yuh, Cindy Chen, Lanhui Zhang
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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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Patent number: 7514191Abstract: 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: GrantFiled: November 8, 2006Date of Patent: April 7, 2009Assignee: Xerox CorporationInventors: John F. Yanus, Markus Silvestri
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Publication number: 20090075190Abstract: The presently disclosed embodiments are directed to charge transport layers useful in electrostatography. More particularly, the embodiments pertain to an improved imaging member having a dual charge generation layer comprising a top layer and a bottom layer, wherein the bottom layer comprises a blend of phthalocyanine pigments having different sensitivities and morphologies.Type: ApplicationFiled: September 14, 2007Publication date: March 19, 2009Applicant: XEROX CORPORATIONInventors: Liang-Bih Lin, Daniel V. Levy, Markus Silvestri
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Patent number: 7361440Abstract: The presently disclosed embodiments are directed to anticurl backing layers useful in electrostatography. More particularly, the embodiments pertain to an electrostatographic imaging member with an improved anticurl backing layer including a low surface energy polymeric material to prevent curling and reduce friction, and a process for making and using the member.Type: GrantFiled: August 9, 2005Date of Patent: April 22, 2008Assignee: Xerox CorporationInventors: Satchidanand Mishra, Satish Parikh, Anthony M. Horgan, Kathleen Carmichael, Markus Silvestri, Edward Grabowski, Donald Goodman, Richard Post, Kenny-tuar Dinh
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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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Publication number: 20070196752Abstract: 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: February 22, 2006Publication date: August 23, 2007Inventors: Kenny-Tuan Dinh, Dale Renfer, Kendra Giza, Michael Mehan, Susan Vandusen, Markus Silvestri, John Yanus
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Publication number: 20070148575Abstract: The presently disclosed embodiments are directed to overcoat layers useful in electrostatography. More particularly, the embodiments pertain to an electrostatographic imaging member with an improved overcoat layer including a polymeric binder that lowers the surface energy involved and reduces friction.Type: ApplicationFiled: December 27, 2005Publication date: June 28, 2007Applicant: XEROX CORPORATIONInventors: Satchidanand Mishra, Kathleen Carmichael, Anthony Horgan, Markus Silvestri, Satish Parikh, Edward Grabowski, Kenny-tuan Dinh, Richard Post, Donald Goodman
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Publication number: 20070147864Abstract: A ghost removing device for a marking apparatus includes a photoreceptor, a primary charging device, an erase light generating device to generate an erase light when activated, a voltage source to supply a charge voltage to the primary charging device, and a controller configured to control the at least one voltage source to supply the charge voltage to the primary charging device and to activate the erase light generating device substantially simulataneously after transfer of a toned image within a marking cycle. A ghost removing method for a marking device with a photoreceptor, including performing a partial print cycle, applying an erase light to the photoreceptor, and applying a charge voltage to the photoreceptor, wherein the erase light and the charge voltage are applied to the photoreceptor substantially simultaneously after completion of the partial cycle.Type: ApplicationFiled: December 28, 2005Publication date: June 28, 2007Applicant: XEROX CORPORATIONInventors: James Markovics, Marc Livecchi, Edward Savage, Gary Batt, Markus Silvestri
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Publication number: 20070148573Abstract: The presently disclosed embodiments are directed to charge transport layers useful in electrostatography. More particularly, the embodiments pertain to an electrostatographic imaging member with an improved charge transport layer including a polymeric binder that lowers the surface energy involved and reduces friction.Type: ApplicationFiled: December 27, 2005Publication date: June 28, 2007Applicant: XEROX CORPORATIONInventors: Satchidanand Mishra, Kathleen Carmichael, Satish Parikh, Anthony Horgan, Markus Silvestri, Edward Grabowski, Kenny-tuan Dinh, Richard Post, Donald Goodman
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Publication number: 20070134573Abstract: An electrophotographic imaging member includes a substrate, a charge generating layer, a charge transport layer, and an overcoating layer, where the overcoating layer includes a terphenyl arylamine dissolved or molecularly dispersed in a polymer binder.Type: ApplicationFiled: December 13, 2005Publication date: June 14, 2007Applicant: XEROX CORPORATIONInventors: John Yanus, Kenny-Tuan Dinh, Markus Silvestri, Yuhua Tong, Dale Renfer, T. Freeman, M. Hinckel
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Publication number: 20070092813Abstract: 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: ApplicationFiled: November 16, 2006Publication date: April 26, 2007Inventors: Anthony Horgan, Robert Yu, Satchidanand Mishra, Richard Post, Edward Grabowski, Kathleen Carmichael, John Lambie, Houy Yuh, Timothy Fuller, John Yanus, Markus Silvestri, Yuhua Tong, Dale Renfer, Kenny-Tuan Dinh, Geoffrey Foley
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Publication number: 20070072101Abstract: An electrophotographic imaging member includes a substrate, a charge generating layer, a charge transport layer, and an overcoating layer, the overcoating layer including a cured polyester polyol or cured acrylated polyol film forming resin and a charge transport material.Type: ApplicationFiled: September 26, 2005Publication date: March 29, 2007Applicant: XEROX CORPORATIONInventors: Kenny-Tuan Dinh, John Yanus, Kendra Giza, James Backus, T. Freeman, Markus Silvestri, Michael Mehan
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Publication number: 20070037081Abstract: The presently disclosed embodiments are directed to anticurl backing layers useful in electrostatography. More particularly, the embodiments pertain to an electrostatographic imaging member with an improved anticurl backing layer including a low surface energy polymeric material to prevent curling and reduce friction, and a process for making and using the member.Type: ApplicationFiled: August 9, 2005Publication date: February 15, 2007Applicant: Xerox CorporationInventors: Satchidanand Mishra, Satish Parikh, Anthony Horgan, Kathleen Carmichael, Markus Silvestri, Edward Grabowski, Donald Goodman, Richard Post, Kenny-tuan Dinh
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Publication number: 20060291877Abstract: A method for determining the approximate surface conductivity of a photoreceptor surface. The method involves forming a latent image of a series of lines of different widths on the surface, developing the image, and then printing the image. Based on which lines print, the surface conductivity can be computed once the developability of isolated lines is established through a calibration procedure.Type: ApplicationFiled: June 22, 2005Publication date: December 28, 2006Inventors: Markus Silvestri, Kenny-Tuan Dinh, Surendar Jeyadev, Gary Batt, Dale Renfer
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Publication number: 20060239727Abstract: A weldable intermediate transfer belt having a substrate with a homogeneous composition of polyaniline in an amount of from about 2 to about 25 percent by weight of total solids, and a thermoplastic polyimide in an amount of from about 75 to about 98 percent by weight of total solids, and the polyaniline has a particle size of from about 0.5 to about 5.0 microns, and an apparatus for forming images on a recording medium and incorporating the intermediate transfer belt.Type: ApplicationFiled: June 5, 2006Publication date: October 26, 2006Inventors: Donald Goodman, Satish Parikh, Edward Grabowski, Matthew Torpey, M Hinckel, Michael Roetker, Markus Silvestri, John Darcy, David Martin, Scott Griffin, Felix Santana, Robert Flanagan, Joellen Simone, Robert U. Yu, John Kerwawycz, Satchidanand Mishra