Patents Represented by Attorney Marylou J. Lavoie, Esq. LLC

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  • Image conditioning coating
    Patent number: 8096649
    Abstract: A contact leveling surface for an ink jet imaging member comprising a low adhesion coating, wherein when the low adhesion coating is disposed on a contact leveling surface, jetted drops of ultra-violet gel ink exhibit a low sliding angle with the contact leveling surface, wherein the low sliding angle is less than about 1° to less than about 30°.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: January 17, 2012
    Assignee: Xerox Corporation
    Inventors: Varun Sambhy, Bryan J. Roof, Kock-Yee Law, Hong Zhao
  • Ink carriers containing low viscosity functionalized waxes, phase change inks including same, and methods for making same
    Patent number: 8029861
    Abstract: A phase change ink including a colorant and a carrier including a tri-ester of the formula wherein R1, R2 and R3, and n are as defined herein.
    Type: Grant
    Filed: September 23, 2008
    Date of Patent: October 4, 2011
    Assignee: Xerox Corporation
    Inventors: Adela Goredema, Caroline M. Turek, Christopher A. Wagner, C. Geoffrey Allen
  • Phase change inks containing colorant compounds
    Patent number: 7997712
    Abstract: Phase change inks comprising a carrier and a colorant composition including a basic dye component and an acid dye component providing an internal salt composition wherein at least one of the basic dye component, the acid dye component, or both the basic dye component and the acid dye component comprises a waxy moiety.
    Type: Grant
    Filed: February 6, 2007
    Date of Patent: August 16, 2011
    Assignee: Xerox Corporation
    Inventor: Jeffrey H. Banning
  • Low molecular weight pigment dispersants for phase change ink
    Patent number: 7973186
    Abstract: Disclosed is a compound of the formula or a mixture thereof; wherein R and R? are the same or different, and wherein R and R? are independently selected from an alkyl group, an arylalkyl group, or an alkylaryl group, wherein the alkyl group, the arylalkyl group, or the alkylaryl group has from about 18 to about 60 carbon atoms; and wherein m is an integer of from about 1 to about 30.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: July 5, 2011
    Assignee: Xerox Corporation
    Inventors: Adela Goredema, Mihaela Maria Birau, C. Geoffrey Allen, Caroline Turek, Maxine E. Haberl, Carol A. Jennings, Peter G. Odell
  • Colorant compounds
    Patent number: 7910754
    Abstract: A compound of the formula wherein R1, R2, R3, R4, R5, R6, R?, R?, Y, CA+, and A? each, independently of the others are as defined herein.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: March 22, 2011
    Assignee: Xerox Corporation
    Inventor: Jeffrey H. Banning
  • Phase change ink compositions
    Patent number: 7905948
    Abstract: A phase change ink composition comprising (a) at least one curable monomer or prepolymer, (b) at least one gellant, (c) at least one hyperbranched polymer comprising at least one photoinitiating moiety, (d) a colorant, (e) optionally, a reactive oligomer; and (f) optionally, at least one low molecular weight photo initiator.
    Type: Grant
    Filed: August 14, 2007
    Date of Patent: March 15, 2011
    Assignee: Xerox Corporation
    Inventors: Jennifer L. Belelie, Marcel P. Breton
  • Phase change ink compositions
    Patent number: 7812064
    Abstract: A radiation curable phase change ink comprising a white colorant; a colorant dispersant; and an ink vehicle comprising at least one curable monomer; at least one gellant; optionally at least one photoinitiator; optionally at least one stabilizer; and optionally at least one wax.
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: October 12, 2010
    Assignee: Xerox Corporation
    Inventors: Peter G. Odell, Jennifer L. Belelie, Hadi K. Mahabadi, Christopher A. Wagner, C. Geoffrey Allen
  • Colorant compounds
    Patent number: 7812140
    Abstract: Disclosed is a compound of the formula and dimers thereof, wherein R, R?, X, (Y)m, and (Z)n are as defined herein. The compounds are useful as colorants, particularly in applications such as phase change inks.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: October 12, 2010
    Assignee: Xerox Corporation
    Inventors: Jeffrey H. Banning, James D. Mayo, Rina Carlini
  • Phase change inks containing colorant compounds
    Patent number: 7811368
    Abstract: Disclosed is a phase change ink composition comprising a phase change ink carrier and a compound of the formula and dimers thereof, wherein R, R?, X, (Y)m; and (Z)n are as defined herein.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: October 12, 2010
    Assignee: Xerox Corporation
    Inventors: Jeffrey H. Banning, James D. Mayo, Rina Carlini
  • Phase change inks containing colorant compounds
    Patent number: 7749315
    Abstract: Disclosed is a phase change ink composition comprising a phase change ink carrier and a compound of the formula and dimers thereof, wherein R, R2, X and Z are as described herein.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: July 6, 2010
    Assignee: Xerox Corporation
    Inventors: Jeffrey H. Banning, Rina Carlini, James D. Mayo
  • Phase change inks containing colorant compounds
    Patent number: 7736426
    Abstract: Phase change inks comprising a carrier and a colorant of the formula wherein R1, R2, R3, R4, R5, R6, R, Y, CA, A-, m and n each, independently of the others are as defined herein.
    Type: Grant
    Filed: February 6, 2007
    Date of Patent: June 15, 2010
    Assignee: Xerox Corporation
    Inventor: Jeffrey H. Banning
  • Colorant compounds
    Patent number: 7732581
    Abstract: Disclosed is a compound of the formula and dimers thereof, wherein R, R?, X, (Y)m, and (Z)n are as defined herein. The compounds are useful as colorants, particularly in applications such as phase change inks.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: June 8, 2010
    Assignee: Xerox Corporation
    Inventors: Jeffrey H. Banning, James D. Mayo, Rina Carlini
  • Emulsion polymerization process
    Patent number: 7713674
    Abstract: An emulsion polymerization process comprising polymerizing monomer in an emulsion in a reaction vessel at a first temperature to form a resin; cooling the reaction vessel to a second temperature that is above the softening point of the resin yet below the temperature required for significant depolymerization reaction to occur; and adding water to the cooled reaction vessel in an amount sufficient to effect phase inversion with mixing for a sufficient time to form an aqueous latex emulsion in the absence of a surfactant.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: May 11, 2010
    Assignee: Xerox Corporation
    Inventors: Allan Kwok-Wai Chen, Milan Maric, Tie Hwee Ng, George Liebermann, Enno Eric Agur, Hadi Khan Mahabadi
  • Toner compositions
    Patent number: 7645552
    Abstract: Toner compositions include a non cross linked resin; a cross linked resin or gel; a wax; and a colorant. Processes for preparing a toner include mixing a non-cross linked resin and a cross-linked resin or gel in the presence of a wax, a colorant, and a coagulant to provide toner size aggregates; adding additional non-cross linked latex to the formed aggregates thereby providing a shell over the formed aggregates; heating the shell covered aggregates to form toner; and, optionally, isolating the toner.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: January 12, 2010
    Assignee: Xerox Corporation
    Inventors: Raj D. Patel, Daryl Vanbesien, Enno E. Agur, Edward G. Zwartz, Maria N. V. McDougall, Emily L. Moore, Patricia A. Burns, Kimberly D. Nosella, Ke Zhou, Vladislav Skorokhod, Wafa F. Bashir, Shigang (Steven) Qiu
  • Imaging members and method for sensitizing a charge generation layer of an imaging member
    Patent number: 7575838
    Abstract: An imaging member including a substrate; thereover a charge generation layer comprising a thiophosphate; and at least one charge transport layer positioned on the charge generation layer.
    Type: Grant
    Filed: July 6, 2006
    Date of Patent: August 18, 2009
    Assignee: Xerox Corporation
    Inventors: Jin Wu, Geoffrey M. T. Foley, Satchidanand Mishra, Liang-bih Lin, Anthony M. Horgan, Yonn K. Rasmussen, Kathleen M. Carmichael, Edward F. Grabowski, Markus Rudolf Silvestri
  • Photoconductive members
    Patent number: 7514192
    Abstract: A photoconductive member component comprising a supporting substrate and thereover a photogenerating layer comprising a tetrahalobenzamidazolebenzene or a bis(tetrahalophenyl)biphenylbisimidazole of the alternative following formulas or dimers thereof wherein each of R1, R2, R3, R4, and R5 are the same or different and are independently selected from the group comprising hydrogen, alkyl, aryl, and halogen, and a charge transport layer component.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: April 7, 2009
    Assignee: Xerox Corporation
    Inventors: James McConnell Duff, Timothy P. Bender, Cuong Vong, John F. Graham
  • Imaging members having undercoat layer with a polymer resin and near infrared absorbing component
    Patent number: 7485399
    Abstract: An imaging member including a metal or metallized substrate; an undercoat layer comprising a polymer resin and a near infrared absorbing component that absorbs at an imaging member exposure wavelength and has a high molar extinction coefficient; and one or more additional layers disposed on the undercoat layer, wherein the additional layer or layers comprise a charge-generating component and a charge-transport component.
    Type: Grant
    Filed: February 2, 2006
    Date of Patent: February 3, 2009
    Assignee: Xerox Corporation
    Inventors: Liang-Bih Lin, Daniel Vernon Levy, Jin Wu, Francisco Jose Lopez
  • Photoconductive members
    Patent number: 7473785
    Abstract: A compound comprising a tetrahalobenzamidazolebenzene or a bis(tetrahalophenyl)biphenylbisimidazole of the alternative following formulas or dimers thereof wherein each of R1, R2, R3, R4, and R5 are the same or different and are independently selected from the group comprising hydrogen, alkyl, aryl, and halogen.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: January 6, 2009
    Assignee: Xerox Corporation
    Inventors: James McConnell Duff, Timothy P. Bender, Cuong Vong, John F. Graham
  • Toner processes
    Patent number: 7413842
    Abstract: A toner process comprising aggregating or coagulating a latex emulsion comprising a resin, a colorant and wax particles using an amount of polymetal ion coagulant to provide core particles; heating the core particles to provide micron size aggregates; optionally adding a second resin emulsion; adding a sequestering or complexing component and a base to remove the polymetal ion in a controlled manner; further heating the mixture to provide toner particles; and optionally, isolating the toner particles.
    Type: Grant
    Filed: August 22, 2005
    Date of Patent: August 19, 2008
    Assignee: Xerox Corporation
    Inventors: Daryl Vanbesien, David J. Sanders, Raj D. Patel, Christine D. Anderson, Patricia Ann Burns, Nam-Suk Ro
  • Toner compositions
    Patent number: 7300734
    Abstract: A toner composition comprising a binder, colorant, and a charge control surface additive mixture comprising a mixture of a first titanium dioxide possessing a first conductivity and a second titanium dioxide possessing a second conductivity and which second conductivity is dissimilar than the first conductivity; wherein the mixture of the first titanium dioxide and the second titanium dioxide is selected in a ratio sufficient to impart a selected triboelectric charging characteristic to the toner composition.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: November 27, 2007
    Assignee: Xerox Corporation
    Inventors: Maria N. V. McDougall, Richard P. N. Veregin