Patents by Inventor Marko D. Saban
Marko D. Saban 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: 9529286Abstract: Antioxidants used for overcoat layers and processes for making the same. The present process for making the antioxidant has proven to be repeatable, cheaper, faster and safer than conventional processes. In particular, the present process uses a different solvent system where crude bis(4-diethylamino-2-methylphenyl)-(4-diethylaminophenylmethane) is dissolved in methylethyl ketone at room temperature, followed by product precipitation in a warm mixture of ethanol and water.Type: GrantFiled: October 11, 2013Date of Patent: December 27, 2016Assignee: XEROX CORPORATIONInventors: Mahya Mokhtari, Marko D. Saban
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Publication number: 20150102529Abstract: Antioxidants used for overcoat layers and processes for making the same. The present process for making the antioxidant has proven to be repeatable, cheaper, faster and safer than conventional processes. In particular, the present process uses a different solvent system where crude bis(4-diethylamino-2-methylphenyl)-(4-diethylaminophenylmethane) is dissolved in methylethyl ketone at room temperature, followed by product precipitation in a warm mixture of ethanol and water.Type: ApplicationFiled: October 11, 2013Publication date: April 16, 2015Applicant: XEROX CORPORATIONInventors: Mahya Mokhtari, Marko D. Saban
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Patent number: 8834965Abstract: Processes for producing organoamine-stabilized silver nanoparticles are disclosed. The processes comprise: (a) forming a solution comprising an organic solvent and a first amount of organoamine; (b) adding silver salt particles to the solution; (c) adding a second amount of organoamine to the solution; (d) adding an organohydrazine to the solution; and (e) reacting the solution to form organoamine-stabilized silver nanoparticles.Type: GrantFiled: February 12, 2009Date of Patent: September 16, 2014Assignee: Xerox CorporationInventors: Mahya Mokhtari, Marko D. Saban, Roger Earl Gaynor
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Patent number: 8765025Abstract: A metal nanoparticle composition includes an organic-stabilized metal nanoparticle and a solvent in which the solvent selected has the following Hansen solubility parameters: a dispersion parameter of about 16 MPa0.5 or more, and a sum of a polarity parameter and a hydrogen bonding parameter of about 8.0 MPa0.5 or less. The metal nanoparticle composition is suitable for printing conductive lines that are uniform, smooth and narrow on various substrate surfaces. The metal nanoparticle composition is able to form printed conductive features having a coffee ring effect ratio of about 1.2 to about 0.8, a surface roughness of about 15 or less and a line width of about 200 microns or less.Type: GrantFiled: June 9, 2010Date of Patent: July 1, 2014Assignee: Xerox CorporationInventors: Yiliang Wu, Yulin Wang, Mahya Mohktari, Roger E. Gaynor, Nan-Xing Hu, Marko D. Saban
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Patent number: 8366971Abstract: A composition that may be an electronic circuit element includes a metal nanoparticle, a silicone modified polyacrylate compound and a solvent. The silicone modified polyacrylate compound may be a silicone modified polyacrylate compound with at least one organic functional moiety. A method of forming conductive features on a substrate includes depositing a composition containing metal nanoparticles, a silicone modified polyacrylate compound and a solvent onto a substrate, and heating the deposited composition to a temperature from about 100° C. to about 200° C.Type: GrantFiled: April 2, 2010Date of Patent: February 5, 2013Assignee: Xerox CorporationInventors: Marko D. Saban, Yulin Wang, Mahya Mohktari, Roger E. Gaynor, Yiliang Wu
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Patent number: 8147908Abstract: Process for producing organoamine-stabilized silver nanoparticles with a molar ratio of silver salt to organoamine of about 1:4 to about 1:10 are disclosed. The process includes: forming a solution including an organic solvent and a first amount of organoamine; adding silver salt particles to the solution; adding a second amount of organoamine to the solution; adding a hydrazine to the solution; and reacting the solution to form an organoamine-stabilized silver nanoparticles.Type: GrantFiled: June 9, 2010Date of Patent: April 3, 2012Assignee: Xerox CorporationInventors: Mahya Mokhtari, Roger E. Gaynor, Marko D. Saban
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Publication number: 20110305826Abstract: Process for producing organoamine-stabilized silver nanoparticles with a molar ratio of silver salt to organoamine of about 1:4 to about 1:10 are disclosed. The process includes: forming a solution including an organic solvent and a first amount of organoamine; adding silver salt particles to the solution; adding a second amount of organoamine to the solution; adding a hydrazine to the solution; and reacting the solution to form an organoamine-stabilized silver nanoparticles.Type: ApplicationFiled: June 9, 2010Publication date: December 15, 2011Applicant: XEROX CORPORATIONInventors: Mahya MOKHTARI, Roger E. Gaynor, Marko D. Saban
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Publication number: 20110305821Abstract: A metal nanoparticle composition includes an organic-stabilized metal nanoparticle and a solvent in which the solvent selected has the following Hansen solubility parameters: a dispersion parameter of about 16 MPa0.5 or more, and a sum of a polarity parameter and a hydrogen bonding parameter of about 8.0 MPa0.5 or less. The metal nanoparticle composition is suitable for printing conductive lines that are uniform, smooth and narrow on various substrate surfaces. The metal nanoparticle composition is able to form printed conductive features having a coffee ring effect ratio of about 1.2 to about 0.8, a surface roughness of about 15 or less and a line width of about 200 microns or less.Type: ApplicationFiled: June 9, 2010Publication date: December 15, 2011Applicant: XEROX CORPORATIONInventors: Yiliang Wu, Yulin Wang, Mahya Mohktari, Roger E. Gaynor, Nan-Xing Hu, Marko D. Saban
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Publication number: 20110244117Abstract: A composition that may be an electronic circuit element includes a metal nanoparticle, a silicone modified polyacrylate compound and a solvent. The silicone modified polyacrylate compound may be a silicone modified polyacrylate compound with at least one organic functional moiety. A method of forming conductive features on a substrate includes depositing a composition containing metal nanoparticles, a silicone modified polyacrylate compound and a solvent onto a substrate, and heating the deposited composition to a temperature from about 100° C. to about 200° C.Type: ApplicationFiled: April 2, 2010Publication date: October 6, 2011Applicant: XEROX CORPORATIONInventors: Marko D. Saban, Yulin Wang, Mahya Mohktari, Roger E. Gaynor, Yiliang Wu
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Patent number: 7947825Abstract: Processes for making organic pigments useful in imaging members, specifically for pigments that after further polymorphic conversion may be used in a charge generating layer of an imaging member. More specifically, there are described processes for producing titanyl phthalocyanine (TiOPc) in high yields using tetrahydronaphthalene as reaction solvent, such as TiOPc Type I. This pigment can be successfully converted to a high sensitivity crystal form useful as charge generating pigment in an imaging member.Type: GrantFiled: February 13, 2007Date of Patent: May 24, 2011Assignee: Xerox CorporationInventors: Marko D. Saban, George Liebermann, Roger E. Gaynor, Sandra Gardner, Cuong Vong, Evelyn Juandi
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Publication number: 20100203333Abstract: Processes for producing organoamine-stabilized silver nanoparticles are disclosed. The processes comprise: (a) forming a solution comprising an organic solvent and a first amount of organoamine; (b) adding silver salt particles to the solution; (c) adding a second amount of organoamine to the solution; (d) adding an organohydrazine to the solution; and (e) reacting the solution to form organoamine-stabilized silver nanoparticles.Type: ApplicationFiled: February 12, 2009Publication date: August 12, 2010Applicant: XEROX CORPORATIONInventors: Mahya Mokhtari, Marko D. Saban, Roger Earl Gaynor
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Patent number: 7541060Abstract: Disclosed is a technique for producing bichromal balls that are adapted for use in high temperature applications. The bichromal balls find particular application in signs and display devices that can be used in environments in which the temperature exceeds 40° C.Type: GrantFiled: August 17, 2004Date of Patent: June 2, 2009Assignee: Xerox CorporationInventors: San-Ming Yang, Thomas Edward Enright, Aurelian Valeriu Magdalinis, Ahmed Abd Alzamly, Man-Chung Tam, Carol Ann Jennings, Peter M. Kazmaier, Marko D. Saban, Michael Steven Hawkins
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Publication number: 20090061337Abstract: A photoconductor comprising a supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and where the photogenerating layer contains a triazine.Type: ApplicationFiled: August 31, 2007Publication date: March 5, 2009Applicant: XEROX CORPORATIONInventors: Jin Wu, Liang-Bih Lin, Daniel V. Levy, Marko D. Saban
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Patent number: 7417787Abstract: An electrophoretic display device includes a display layer of a multiplicity of individual microcapsules containing a display medium therein and conductive substrates, at least one of the conductive substrates being transparent, wherein the display layer is located in between the conductive substrates, and wherein the display medium includes one or more set of colored particles in a dielectric fluid and has an electric conductivity of about 10?11 to about 10?15 S/m. The microcapsules may be made by encapsulating the display medium in the wall forming material of the microcapsules, and for example a complex coacervation process may be used.Type: GrantFiled: May 19, 2006Date of Patent: August 26, 2008Assignee: Xerox CorporationInventors: Naveen Chopra, Gabriel Iftime, Peter M. Kazmaier, Man-Chung Tam, Thomas E. Enright, Marko D. Saban
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Publication number: 20080194814Abstract: Processes for making organic pigments useful in imaging members, specifically for pigments that after further polymorphic conversion may be used in a charge generating layer of an imaging member. More specifically, there are described processes for producing titanyl phthalocyanine (TiOPc) in high yields using tetrahydronaphthalene as reaction solvent, such as TiOPc Type I. This pigment can be successfully converted to a high sensitivity crystal form useful as charge generating pigment in an imaging member.Type: ApplicationFiled: February 13, 2007Publication date: August 14, 2008Applicant: Xerox CorporationInventors: Marko D. Saban, George Liebermann, Roger E. Gaynor, Sandra Gardner, Cuong Vong, Evelyn Juandi
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Publication number: 20080076049Abstract: Continuous and batch processes for selectively hydrogenating double and/or triple bonds in organic molecules include providing at least one organic molecule containing a double and/or triple bond, providing at least one hydrogen donor molecule, and hydrogenating the double and/or triple bond in the presence of at least one catalyst. Continuous and batch processes for preparing arylamine molecules include selectively hydrogenating double bonds in arylamine compounds by providing at least one organic molecule containing a multiple bond, providing at least one hydrogen donor molecule, and hydrogenating the multiple bond in the presence of at least one catalyst. The continuous and batch processes provide efficient, cost-effective and safe methods for conducting selective hydrogenation reactions in the synthesis of organic molecules, such as charge-transport molecules.Type: ApplicationFiled: September 26, 2006Publication date: March 27, 2008Applicant: XEROX CORPORATIONInventors: Marko D. Saban, Leanne Dawn Murphy, Thomas Edward Enright
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Patent number: 7297459Abstract: A process for manufacturing a toner having improved relative humidity sensitivity is described. The process comprises forming polyester toner particles by emulsion/aggratation, fluidizing the toner particles with a stream of inert gas while spraying the toner particles with a solution containing an additive affecting relative humidity sensitivity, and wherein the additive contacts a surface of the toner particles and the additive remains on the surface of the toner particles.Type: GrantFiled: November 1, 2004Date of Patent: November 20, 2007Assignee: Xerox CorporationInventors: Milan Maric, Alan E. J. Toth, Marko D. Saban
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Patent number: 7029817Abstract: A toner process comprising the aggregation and coalescence of a sulfonated polyester and a colorant, and wherein said polyester possesses a degree of sulfonation or a sulfonation percentage of from about 0.5 to about 3 mol percent.Type: GrantFiled: February 13, 2004Date of Patent: April 18, 2006Assignee: Xerox CorporationInventors: Sarah J. P. Robinson, Thomas E. Enright, Alan E. J. Toth, Milan Maric, Michael S. Hawkins, Marko D. Saban, Guerino G. Sacripante, George Liebermann
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Patent number: 6764802Abstract: A process including: agitating a mixture including a liquid and a plurality of resin particles within a vessel at a first shear condition; circulating a portion of the mixture from the vessel through a mixer; adding not all at once an aggregating agent for the resin particles and mixing the aggregating agent with the circulating mixture portion within the mixer at a second shear condition more intensive than the first shear condition to result in a post-mixer circulating composition; and returning the post-mixer circulating composition to the vessel wherein the post-mixer circulating composition undergoes the agitating at the first shear condition.Type: GrantFiled: July 29, 2002Date of Patent: July 20, 2004Assignee: Xerox CorporationInventors: Milan Maric, Alan E. J. Toth, Thomas E. Enright, Marko D. Saban
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Patent number: 6716956Abstract: Disclosed is a process for preparing a polymer of the formula wherein x is an integer of 0 or 1, A is one of several specific groups, such as B is one of several specified groups, such as or mixtures thereof, and n is an integer representing the number of repeating monomer units, said process comprising (A) providing a reaction mixture which comprises (i) a solvent, (ii) a compound of the formula (iii) a compound of the formula (iv) a compound of the formula wherein a is an integer of from 1 to 5, R′ is a hydrogen atom, an alkyl group, an aryl group, an arylalkyl group, an alkylaryl group, an alkoxy group, an aryloxy group, an arylalkyloxy group, an alkylaryloxy group, a polyalkyleneoxy group, or a mixture thereof, and (v) a carbonate base; and (B) heating the reaction mixture and removing generated water from the reaction mixture, thereby effecting a polymerization reaction.Type: GrantFiled: January 9, 2002Date of Patent: April 6, 2004Assignee: Xerox CorporationInventors: Timothy P. Bender, Christine J. DeVisser, Richard A. Burt, Paul F. Smith, Marko D. Saban