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).

  • Toners with Improved Dielectric Loss
    Publication number: 20130337377
    Abstract: The disclosure describes a pigment treated with a rosin and a toner particle containing that rosin-treated pigment particle. The toner has a lower level of dielectric loss.
    Type: Application
    Filed: August 19, 2013
    Publication date: December 19, 2013
    Applicant: XEROX CORPORATION
    Inventors: Ke Zhou, Rina Carlini, Daryl W. Vanbesien, Cuong Vong, Karen A. Moffat, Richard P.N. Veregin
  • Solvent-based inks comprising coated magnetic nanoparticles
    Patent number: 8597420
    Abstract: Solvent-based ink compositions which can be used for ink jet printing in a variety of applications. In particular, the present embodiments are directed to magnetic inks having desirable ink properties. The ink of the present embodiments comprises magnetic nanoparticles that are coated with various materials to prevent the exposure of the nanoparticles to oxygen, and provides robust prints.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: December 3, 2013
    Assignee: Xerox Corporation
    Inventors: Gabriel Iftime, Peter G. Odell, C. Geoffrey Allen, Marcel P. Breton, Richard P. N. Veregin
  • Super low melt toner with core-shell toner particles
    Patent number: 8592119
    Abstract: A toner particle having a core and a shell, and a method for making the toner particle. The core includes a crystalline resin and the shell includes an amorphous resin. The shell is substantially to completely free of the crystalline resin. The toner particle permits inclusion of greater amounts of crystalline resin materials in the core, thereby lowering the minimum fusing temperature of the toner formed from the particles.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: November 26, 2013
    Assignee: Xerox Corporation
    Inventors: Jordan H. Wosnick, Richard P. N. Veregin, Edward G. Zwartz, Michael S. Hawkins
  • Electrophotographic apparatus
    Patent number: 8588634
    Abstract: The present disclosure provides toners having a tunable gloss level, electrophotographic apparatuses for using such toners as well as processes for making such toners.
    Type: Grant
    Filed: February 22, 2010
    Date of Patent: November 19, 2013
    Assignee: Xerox Corporation
    Inventors: Edward Graham Zwartz, T. Brian McAneney, Eric Rotberg, Richard P. N. Veregin, Valerie M. Farrugia, Jordan H. Wosnick
  • Toner Process
    Publication number: 20130260308
    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: Application
    Filed: March 29, 2012
    Publication date: October 3, 2013
    Applicant: XEROX CORPORATION
    Inventors: Melanie Davis, Kimberly Nosella, Suxia Yang, Daryl Vanbesien, Richard P.N. Veregin
  • CUSTOM COLOR TONER PRODUCTION SYSTEMS AND METHODS
    Publication number: 20130255190
    Abstract: A custom color toner production system includes a toner delivery system, a cartridge sealing system, a mixing system, and a packaging system. The toner delivery system includes selectively engageable fluid delivery lines for delivering toner of particular color to a cartridge as need for producing a custom color toner in response to an electronically submitted user request. Cartridge containing the unmixed delivered toner may be sealed by a sealing system, and blended using a resonant mixer to produce a custom color toner. The cartridge containing the mixed custom color toner may be packaged using a packaging system.
    Type: Application
    Filed: March 30, 2012
    Publication date: October 3, 2013
    Applicant: XEROX CORPORATION
    Inventors: Santiago FAUCHER, Gerhard Pawelka, Majid Kasmaei Kamel, Michael S. Hawkins, Suxia Yang, Richard P.N. Veregin, Joseph Barbisan
  • SUPER LOW MELT TONER WITH CORE-SHELL TONER PARTICLES
    Publication number: 20130236829
    Abstract: A toner particle having a core and a shell, and a method for making the toner particle. The core includes a crystalline resin and the shell includes an amorphous resin. The shell is substantially to completely free of the crystalline resin. The toner particle permits inclusion of greater amounts of crystalline resin materials in the core, thereby lowering the minimum fusing temperature of the toner formed from the particles.
    Type: Application
    Filed: March 6, 2012
    Publication date: September 12, 2013
    Applicant: XEROX CORPORATION
    Inventors: Jordan H. Wosnick, Richard P. N. Veregin, Edward G. Zwartz, Michael S. Hawkins
  • Emulsion aggregation toners
    Patent number: 8518627
    Abstract: The present disclosure provides processes for producing toners. In embodiments, silica is added as a chelating agent during the toner production process contributing to enhanced triboelectric charging properties of the toner particles.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: August 27, 2013
    Assignee: Xerox Corporation
    Inventors: Allan K. Chen, Santiago Faucher, Shigang S. Qiu, Karen A. Moffat, Richard P. N. Veregin
  • MIXER APPARATUS AND METHOD OF MAKING DEVELOPER
    Publication number: 20130164664
    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: Application
    Filed: December 21, 2011
    Publication date: June 27, 2013
    Applicant: XEROX CORPORATION
    Inventors: Majid Kamel, Suxia Yang, Richard P.N. Veregin, Michael S. Hawkins, Cuong Vong, Santiago Faucher
  • Toners with Improved Dielectric Loss
    Publication number: 20130157187
    Abstract: The disclosure describes a pigment treated with a rosin and a toner particle containing that rosin-treated pigment particle. The toner has a lower level of dielectric loss.
    Type: Application
    Filed: December 14, 2011
    Publication date: June 20, 2013
    Applicant: Xerox Corporation
    Inventors: Ke Zhou, Rina Carlini, Daryl W. Vanbesien, Cuong Vong, Karen A. Moffat, Richard P.N. Veregin
  • Powder coated carrier
    Patent number: 8461252
    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: November 12, 2011
    Date of Patent: June 11, 2013
    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
  • Powder Coated Carrier
    Publication number: 20130123403
    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: Application
    Filed: November 12, 2011
    Publication date: May 16, 2013
    Applicant: 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
  • Low dielectric additives for toner
    Publication number: 20130115549
    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: Application
    Filed: November 9, 2011
    Publication date: May 9, 2013
    Applicant: XEROX CORPORATION
    Inventors: Suxia Yang, Richard P.N. Veregin, Magid Kamel, Cuong Vong, Kimberly Nosella, Eric Rotberg
  • DUAL TONER REPLENISHER ASSEMBLY FOR CONTINUOUSLY VARIABLE GLOSS
    Publication number: 20130114980
    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: Application
    Filed: November 7, 2011
    Publication date: May 9, 2013
    Applicant: Xerox Corporation
    Inventors: Richard P. N. Veregin, Edward Graham Zwartz, Eric Rotberg
  • Tunable gloss toners
    Patent number: 8431302
    Abstract: The present disclosure provides toners having a tunable gloss level, electrophotographic apparatuses for using such toners as well as processes for making such toners.
    Type: Grant
    Filed: February 22, 2010
    Date of Patent: April 30, 2013
    Assignee: Xerox Corporation
    Inventors: Edward Graham Zwartz, T. Brian McAneney, Valerie M. Farrugia, Jordan H. Wosnick, Richard P. N. Veregin, Eric Rotberg
  • Toner compositions and processes
    Patent number: 8431318
    Abstract: The present disclosure provides processes for producing polyester toners by emulsion aggregation where the resulting toner particles have high pigment loadings and desired circularity. The methods include adding a metal, in embodiments a metal compound, at the beginning of coalescence, which speeds the coalescence process and produces toner particles having a desired size and circularity for use in electrophotographic imaging systems.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: April 30, 2013
    Assignee: Xerox Corporation
    Inventors: Daryl W. Vanbesien, Allan K. Chen, Kimberly D. Nosella, Cuong Vong, Karen Ann Moffat, Richard P. N. Veregin, Valerie M. Farrugia
  • Solvent-based inks comprising coated magnetic nanoparticles
    Patent number: 8409341
    Abstract: Solvent-based ink compositions which can be used for ink jet printing in a variety of applications. In particular, the present embodiments are directed to magnetic inks having desirable ink properties. The ink of the present embodiments comprise magnetic nanoparticles that are coated with various materials to prevent the exposure of the nanoparticles to oxygen, and provides robust prints.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: April 2, 2013
    Assignee: Xerox Corporation
    Inventors: Gabriel Iftime, Peter G. Odell, C. Geoffrey Allen, Marcel P. Breton, Richard P. N. Veregin
  • Toner compositions
    Patent number: 8394562
    Abstract: Coated phosphorescent pigments are provided which may be utilized in toner compositions. In embodiments, the phosphorescent pigment may be coated by a powder coating process. The large pigment particles may be dry blended with dried resin latex particles, thereby coating the pigment surface, followed by heating and shearing in a rotary kiln or extruder to melt the toner resin and fuse it to the pigment surface. The resulting coated particles may be utilized with other toners, in embodiments color toners, to provide phosphorescent images.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: March 12, 2013
    Assignee: Xerox Corporation
    Inventors: Richard P. N. Veregin, Eric Rotberg, Michael S. Hawkins, Cuong Vong, Jordan H. Wosnick
  • Colored toners
    Patent number: 8394561
    Abstract: The present disclosure provides violet toners and methods for their production. In embodiments, methods of the present disclosure include systems which may be utilized to predict the color properties of a violet toner, thereby permitting adjustment of the pigment loading and/or target mass per unit area.
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: March 12, 2013
    Assignee: Xerox Corporation
    Inventors: Jordan H. Wosnick, Suxia Yang, Richard P. N. Veregin, Karen A. Moffat
  • Coated carriers
    Patent number: 8389191
    Abstract: The present disclosure provides carriers for use with toner compositions. In embodiments, a carrier may include a core, having a dry powder polymer coating. The polymer coating possesses a carbon to oxygen from about 3:1 to about 8:1. In embodiments, the coating may also include a colorant, such as carbon black. Processes for coating such carriers with the dry powder polymer coatings are also provided.
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: March 5, 2013
    Assignee: Xerox Corporation
    Inventors: Daryl W. Vanbesien, Michael S. Hawkins, Suxia Yang, Richard P. N. Veregin, Karen Ann Moffat