Patents by Inventor Richard P. N. Veregin

Richard P. N. Veregin 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).

  • Hyperpigmented toner
    Patent number: 8846283
    Abstract: The present disclosure describes hyperpigmented toner compositions containing a mixture of insulative color pigments, which toners exhibit reduced dielectric loss and improved tribo-charging.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: September 30, 2014
    Assignee: Xerox Corporation
    Inventors: Richard P N Veregin, Daryl W Vanbesien, Suxia Yang, Majid Kamel, Cuong Vong
  • Low dielectric additives for toner
    Patent number: 8790856
    Abstract: The present disclosure describes toner compositions containing an additive package including one or more additives that exhibit low dielectric loss, which toners exhibit improved tribo charging, 2nd transfer efficiency and IQ without affecting color.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: July 29, 2014
    Assignee: Xerox Corporation
    Inventors: Suxia Yang, Richard P N Veregin, Magid Kamel, Cuong Vong, Kimberly Nosella, Eric Rotberg
  • UV Red Fluorescent EA Toner
    Publication number: 20140197364
    Abstract: The present disclosure relates to a toner design for a clear UV red fluorescence toner having a high lanthanide complex pigment loading, including methods of making the fluorescence toner using a saccharide or a sugar acid to avoid complexation of lanthanide ions from the pigment, with lower aggregation and coalescence temperatures in the preparation of toner particles, where the particles exhibit a narrow size distribution and good xerographic performance.
    Type: Application
    Filed: January 15, 2013
    Publication date: July 17, 2014
    Applicant: Xerox Corporation
    Inventors: Roxan Richards-Johnson, Jordan H. Wosnick, Karen A. Moffat, Edward Graham Zwartz, Biritawit Asfaw, Richard P.N. Veregin, Cuong Vong, Eric Rotberg
  • Hyperpigmented Toner
    Publication number: 20140147781
    Abstract: The present disclosure describes hyperpigmented toner compositions containing a mixture of insulative color pigments, which toners exhibit reduced dielectric loss and improved tribo-charging.
    Type: Application
    Filed: November 28, 2012
    Publication date: May 29, 2014
    Applicant: XEROX CORPORATION
    Inventors: Richard P.N. Veregin, Daryl W. Vanbesien, Suxia Yang, Majid Kamel, Cuong Vong
  • Curable toner compositions and processes
    Patent number: 8722299
    Abstract: Processes for producing emulsion aggregation toners are provided. In embodiments, methods of the present disclosure may be utilized to produce toners suitable for low melt applications, including use in flexible packaging applications, where low pile height is desired for low cost and flexibility. In embodiments, the EA toners may include small particles having a shell with a high amount of resin, which optimizes the charging characteristics of the toner.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: May 13, 2014
    Assignee: Xerox Corporation
    Inventors: Guerino G. Sacripante, Maria Jimena Loureiro, Cuong Vong, Richard P. N. Veregin, Michael S. Hawkins, Edward Graham Zwartz
  • Solid Red Ink Formulations
    Publication number: 20140128518
    Abstract: A solid ink including an ink vehicle and a colorant, the colorant includes an orange colorant and a red colorant, where the orange colorant absorbs light having a wavelength of from about 400 to about 560 nm, and where the red colorant absorbs light having a wavelength of from about 510 to 580 nm. The ink substantially matches PANTONE® Red 032 or PANTONE® Warm red.
    Type: Application
    Filed: November 2, 2012
    Publication date: May 8, 2014
    Applicant: XEROX CORPORATION
    Inventors: Valerie M. Farrugia, C. Geoffrey Allen, Jordan H. Wosnick, Eric Rotberg, Karen A. Moffat, Richard P.N. Veregin, Suxia Yang, Biby E. Abraham
  • Emulsion aggregation toner compositions
    Patent number: 8703377
    Abstract: Disclosed is a toner which comprises particles comprising: (a) a core comprising: (1) a first resin; and (2) a first conductive colorant; and (b) a shell comprising: (1) a second resin; and (2) a second conductive colorant.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: April 22, 2014
    Assignee: Xerox Corporation
    Inventors: Richard P. N. Veregin, Kimberly D Nosella, Cuong Vong, Abdisamed Sheik-Qasim, Melanie Davis, Suxia Yang, Majid Kamel-Kasmaei, Paul J Gerroir
  • Powder Coated Carrier
    Patent number: 8691482
    Abstract: The instant disclosure describes methods for preparing latex resins for coated carriers using surfactant partitioning, which resins exhibit both lower ? potential and greater latex stability, while not adversely affecting particle size, toner charge or other metrics.
    Type: Grant
    Filed: June 1, 2013
    Date of Patent: April 8, 2014
    Assignee: Xerox Corporation
    Inventors: Daryl W Vanbesien, Michael Steven Hawkins, Corey Tracy, Richard P N Veregin, Karen A Moffat, Paul Joseph Gerroir, Thomas E Enright, Valerie Farrugia
  • Toner process
    Patent number: 8691488
    Abstract: The present disclosure describes a toner produced using a coalescing temperature lower than the melting point of a wax in the toner, quench cooling or both. The resulting toners can exhibit reduced dielectric loss and improved tribo charging.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: April 8, 2014
    Assignee: Xerox Corporation
    Inventors: Melanie Davis, Kimberly Nosella, Suxia Yang, Daryl Vanbesien, Richard P. N. Veregin
  • Radiation curable red gel ink formulations
    Patent number: 8686062
    Abstract: A radiation curable ink including at least one curable monomer, at least one organic gellant, at least one photoinitiator, and a colorant, the colorant includes an orange colorant and an red colorant, where the orange colorant absorbs light having a wavelength of from about 400 to about 560 nm, and where the red colorant absorbs light having a wavelength of from about 460 to 580 nm. The ink substantially matches PANTONE® Red 032 or PANTONE® Warm Red.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: April 1, 2014
    Assignee: Xerox Corporation
    Inventors: Valerie M Farrugia, C Geoffrey Allen, Jordan H Wosnick, Eric Rotberg, Karen A Moffat, Richard P N Veregin, Suxia Yang, Barkev Keoshkerian, Biby E Abraham
  • Toner processes
    Patent number: 8673527
    Abstract: The present disclosure provides toners and processes for making said toners. In embodiments, the toners include a fluorescent additive having a fluorescent agent. Toners are colorless when viewed under natural light but when exposed to UV light of a specific wavelength the toners are rendered bright green due to the presence of the fluorescent agent.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: March 18, 2014
    Assignee: Xerox Corporation
    Inventors: Suxia Yang, Richard P. N. Veregin, Gabriel Iftime, Jordan H. Wosnick, Cuong Vong, Paul J. Gerroir, Eric Rotberg, Karen Ann Moffat, Daryl W. Vanbesien
  • Alkyl silane surface treated silica for toner
    Patent number: 8673530
    Abstract: The present disclosure describes toner compositions comprising an alkyl surface-treated silica, which toners exhibit improved tribo-charging, second transfer efficiency and IQ without impacting color.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: March 18, 2014
    Assignee: Xerox Corporation
    Inventors: Suxia Yang, Richard P N Veregin, Magid Kamel, Cuong Vong, Kimberly Nosella, Eric Rotberg
  • Toner compositions and processes
    Patent number: 8663886
    Abstract: The present disclosure provides polymeric additives for use with toner particles. The polymeric additive of the present disclosure includes a copolymer possessing at least one monomer having a high carbon to oxygen ratio, a monomer having more than one vinyl group, and at least one amine-functional monomer. Toners possessing this polymeric additive exhibit excellent stability with respect to relative humidity and excellent charging characteristics.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: March 4, 2014
    Assignee: Xerox Corporation
    Inventors: Daryl W. Vanbesien, Richard P. N. Veregin, Suxia Yang, Corey L. Tracy, Karen Ann Moffat, Cuong Vong, Eric Rotberg, Michael S. Hawkins
  • Phase change magnetic ink comprising carbon coated magnetic nanoparticles and process for preparing same
    Patent number: 8657431
    Abstract: A phase change magnetic ink including a phase change ink carrier; an optional colorant; an optional dispersant; an optional synergist; an optional antioxidant; and a carbon coated magnetic nanoparticle comprising a magnetic core and a carbon shell disposed thereover.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: February 25, 2014
    Assignee: Xerox Corporation
    Inventors: Gabriel Iftime, C. Geoffrey Allen, Peter G. Odell, Richard P. N. Veregin, Marcel P. Breton
  • Tunable gloss toners
    Patent number: 8652732
    Abstract: The present disclosure provides toners having a tunable gloss level, electrophotographic apparatus for suing such toners as well as processes for making such toners.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: February 18, 2014
    Assignee: Xerox Corporation
    Inventors: Edward G. Zwartz, T. Brian McAneney, Valerie M. Farrugia, Jordan H. Wosnick, Richard P N Veregin, Eric Rotberg
  • Ink compositions
    Patent number: 8652575
    Abstract: A light-cyan solid ink including an ink vehicle and a colorant. The colorant includes a cyan colorant, a hue-adjusting colorant that absorbs light having a wavelength of from about 500 to about 600 nm, and an optional shade-adjusting colorant that absorbs light having a wavelength of from about 400 to about 500 nm.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: February 18, 2014
    Assignee: Xerox Corporation
    Inventors: Daryl W. Vanbesien, Edul N. Dalal, Karen A. Moffat, Raymond W. Wong, C. Geoffrey Allen, Maria Mihaela Birau, Richard P. N. Veregin, Jordan H. Wosnick, Valerie M. Farrugia
  • Ink compositions
    Patent number: 8652574
    Abstract: A light-magenta radiation-curable gel ink including at least one curable monomer, at least one organic gellant, at least one photoinitiator, and a colorant. The colorant includes a magenta colorant, a hue-adjusting colorant that absorbs light having a wavelength of from about 400 to about 500 nm, and an optional shade-adjusting colorant that absorbs light having a wavelength of from about 600 to about 700 nm.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: February 18, 2014
    Assignee: Xerox Corporation
    Inventors: Edul N. Dalal, Daryl W. Vanbesien, Karen A. Moffat, Michelle N. Chretien, Barkev Keoshkerian, Richard P. N. Veregin, Jordan H. Wosnick, Valerie M. Farrugia
  • Mixer apparatus and method of making developer
    Patent number: 8642241
    Abstract: The present teachings describe an apparatus for mixing developer. The apparatus includes a first loader for dispensing a predetermined amount of toner particles into a container and a second loader for dispensing a predetermined amount and carrier particles in the container. A sealer seals the container. An acoustic mixer is provided for mixing the container, toner particles and carrier particles at a resonant frequency. A method of mixing developer is disclosed.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: February 4, 2014
    Assignee: Xerox Corporation
    Inventors: Majid Kamel, Suxia Yang, Richard P. N. Veregin, Michael S. Hawkins, Cuong Vong, Santiago Faucher
  • Dual toner replenisher assembly for continuously variable gloss
    Patent number: 8620192
    Abstract: A color image forming machine is provided having a plurality of xerographic marking engines, each forming associated color separations that are combined to produce a color print image. Each marking engine includes a dual replenisher assembly having first and second reservoirs containing respective toners of different gloss levels. The reservoirs each include one or more augers separately and independently controlled for dispensing the respective toners into a developer to continuously vary the gloss level of the toner in the developer.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: December 31, 2013
    Assignee: Xerox Corporation
    Inventors: Richard P. N. Veregin, Edward Graham Zwartz, Eric Rotberg
  • Toner having titania and processes thereof
    Patent number: 8617780
    Abstract: The present disclosure provides white toner compositions and processes for making same. In embodiments, a desirable white toner may be produced without having to resort to excessive pigment loading, having desirable gloss characteristics.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: December 31, 2013
    Assignee: Xerox Corporation
    Inventors: Yi Xin Gong, Daryl W. Vanbesien, Shigang Qiu, Edward Graham Zwartz, Karen Ann Moffat, Richard P. N. Veregin, Cuong Vong, C. Geoffrey Allen