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).

  • Patent number: 9605171
    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: Grant
    Filed: November 2, 2012
    Date of Patent: March 28, 2017
    Assignee: 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
  • Publication number: 20170082936
    Abstract: Methacrylate resins of at least one bio-based methacrylate monomer, where the monomer includes a rosin or isosorbide moiety obtained from natural sources, can be used in toner, carrier coating or both.
    Type: Application
    Filed: December 1, 2016
    Publication date: March 23, 2017
    Inventors: Richard P. N. Veregin, Guerino G. Sacripante
  • Patent number: 9581924
    Abstract: (Meth)acrylate resins of at least one bio-based (meth)acrylate monomer, where the monomer includes a rosin or isosorbide moiety obtained from natural sources, can be used in toner, carrier coating or both.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: February 28, 2017
    Assignee: Xerox Corporation
    Inventors: Richard P N Veregin, Guerino G Sacripante
  • Patent number: 9581926
    Abstract: The present disclosure provides processes for producing images with toner particles. In embodiments, toner particles of a certain diameter in size are applied to a substrate as an incomplete monolayer, and then fused to form an image that is a complete monolayer and possesses a thickness less than the diameter of the particles utilized to form the image.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: February 28, 2017
    Assignee: XEROX CORPORATION
    Inventors: Richard P. N. Veregin, Eric Rotberg, Edward Graham Zwartz, Suxia Yang, Daryl W. Vanbesien, Cuong Vong, Karen Ann Moffat
  • Publication number: 20170031254
    Abstract: The present disclosure provides processes for producing 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 salt, at the beginning of coalescence, which surprisingly speeds the coalescence process and produces toner particles having a desired size and circularity for use in electrophotographic imaging systems.
    Type: Application
    Filed: July 10, 2014
    Publication date: February 2, 2017
    Inventors: Daryl Vanbesien, Yixin Gong, Karen A. Moffat, Richard P.N. Veregin, Cuong Vong, Jordan H. Wosnick, Suxia Yang
  • Publication number: 20170003609
    Abstract: A continuous coalescence process for preparing a sustainable toner is described which features toner with lowered melt properties and higher toner surface carbon to oxygen (C/O) ratios than previously described sustainable resins coalesced in a batch reactor.
    Type: Application
    Filed: July 1, 2015
    Publication date: January 5, 2017
    Inventors: David J.W. Lawton, Ke Zhou, Kimberly D. Nosella, Melanie L. Davis, Guerino G. Sacripante, Richard P.N. Veregin
  • Patent number: 9535348
    Abstract: A continuous coalescence process for preparing a sustainable toner is described which features toner with lowered melt properties and higher toner surface carbon to oxygen (C/O) ratios than previously described sustainable resins coalesced in a batch reactor.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: January 3, 2017
    Assignee: Xerox Corporation
    Inventors: David J W Lawton, Ke Zhou, Kimberly D Nosella, Melanie L Davis, Guerino G Sacripante, Richard P N Veregin
  • Publication number: 20160349641
    Abstract: Disclosed are toner compositions that contain an amorphous polyester resin, a crystalline polyester resin, a colorant and a wax, and where the crystalline polyester resin is subjected to nucleation with a rosin acid or the salt of a rosin acid.
    Type: Application
    Filed: May 25, 2015
    Publication date: December 1, 2016
    Applicant: XEROX CORPORATION
    Inventors: Guerino G. Sacripante, Richard P.N. Veregin, Kimberly D. Nosella, Michael S. Hawkins
  • Patent number: 9383666
    Abstract: Toners and processes useful in providing toners suitable for electrophotographic apparatuses, including apparatuses such as digital, image-on-image, and similar apparatuses. In particular, emulsion aggregation toners that comprise toner particles having a core composed of either polyester resin or both styrene-acrylate and polyester resins. These embodiments also comprise a shell disposed over the core, wherein the shell comprises styrene-acrylate resin.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: July 5, 2016
    Assignee: XEROX CORPORATION
    Inventors: David J. W. Lawton, Richard P. N. Veregin, Guerino G. Sacripante, Melanie Lynn Davis, Edward G. Zwartz
  • Patent number: 9377706
    Abstract: The present disclosure describes a sustainable toner.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: June 28, 2016
    Assignee: Xerox Corporation
    Inventors: Guerino G Sacripante, Ke Zhou, Richard P N Veregin, Edward G Zwartz, Cuong Vong
  • Patent number: 9377713
    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: Grant
    Filed: March 30, 2012
    Date of Patent: June 28, 2016
    Assignee: Xerox Corporation
    Inventors: Santiago Faucher, Gerhard Pawelka, Majid Kasmaei Kamel, Michael S. Hawkins, Suxia Yang, Richard P. N. Veregin, Joseph Barbisan
  • Patent number: 9377704
    Abstract: Red toners that approximate PANTONE® Red 032 and PANTONE® Warm Red are described. 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 520 nm, and where the red colorant absorbs light having a wavelength of from about 500 to 580 nm.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: June 28, 2016
    Assignee: Xerox Corporation
    Inventors: Valerie M Farrugia, Jordan H Wosnick, Eric Rotberg, Karen A Moffat, Richard P N Veregin, Suxia Yang, C Geoffrey Allen
  • Patent number: 9348248
    Abstract: A process for making a latex emulsion including contacting at least one amorphous polyester resin with at least two organic solvents to form a resin mixture, adding a neutralizing agent, and deionized water to the resin mixture, removing the solvent from the formed latex, and separating the solvent from water. Further, the process is carried out above the resin Tg for making the latex, which drives the latex particle size under 100 nm, where toners made from the latex show improved charging performance.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: May 24, 2016
    Assignee: Xerox Corporation
    Inventors: Shigang Qiu, Richard P N Veregin, Kimberly D Nosella, Santiago Faucher, Cuong Vong, Enno E Agur
  • Publication number: 20160139526
    Abstract: (Meth)acrylate resins of at least one bio-based (meth)acrylate monomer, where the monomer includes a rosin or isosorbide moiety obtained from natural sources, can be used in toner, carrier coating or both.
    Type: Application
    Filed: November 14, 2014
    Publication date: May 19, 2016
    Inventors: Richard P. N. Veregin, Guerino G. Sacripante
  • Patent number: 9341968
    Abstract: The disclosure provides a toner composition comprising toner particles with a core and a shell, wherein the core comprises a polyester polymer and a styrene acrylate polymer, and the shell comprises a polyester polymer and, optionally, a styrene acrylate polymer, either or both of which can be the same or different from that in the core.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: May 17, 2016
    Assignee: XEROX CORPORATION
    Inventors: David Lawton, Edward G. Zwartz, Kimberly D. Nosella, Melanie Lynn Davis, Richard P. N. Veregin, Guerino G. Sacripante
  • Patent number: 9290637
    Abstract: A process for preparing a pigmented wax dispersion including (a) melting and mixing a dry pigment with at least one wax to form a pigment concentrate, wherein the pigment concentrate contains at least 25 percent by weight of pigment; (b) milling the pigment concentrate of step (a) to form a milled pigment concentrate; (c) combining the milled pigment concentrate of (b) with water and dispersing to form a pigmented wax dispersion comprising a plurality of pigmented wax particles comprising a pigment core surrounded by a wax shell, wherein the pigmented wax particles exhibit a particle size distribution of from about 150 nanometers to less than about 300 nanometers; wherein the melting and mixing of step (a) and the milling of step (b) is done in an immersion media mill; and wherein the combining of step (c) is done using a piston homogenizer.
    Type: Grant
    Filed: April 19, 2014
    Date of Patent: March 22, 2016
    Assignee: Xerox Corporation
    Inventors: Frank Ping-Hay Lee, Aurelian Valeriu Magdalinis, Michael J. D'Amato, Richard P. N. Veregin, David John William Lawton, Marcel P. Breton
  • Patent number: 9285699
    Abstract: Disclosed is a carrier suitable for use with an electrophotographic developer and an electrophotographic developer containing the carrier. In particular, the carrier is powder coated and comprises a copolymer of cyclohexylmethacrylate and dimethylaminoethylmethacrylate.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: March 15, 2016
    Assignee: XEROX CORPORATION
    Inventors: Bernard A. Kelly, Thomas C. Dombroski, Brian S. Giannetto, Brian E. Moore, Lloyd D. Spencer, Richard P. N. Veregin, Karen A. Moffat, Thomas E. Enright, Valerie M. Farrugia, Michael S. Hawkins, Wafa F. Bashir
  • Patent number: 9229344
    Abstract: Unsaturated polyester resins and processes for making the same are disclosed herein. In particular, the process for making the resin provides resins with improved properties. The unsaturated polyester resins have substantially reduced free fumaric acid as compared to that made from conventional processes. The toner resins are used to prepare toner compositions that have improved performance.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: January 5, 2016
    Assignee: XEROX CORPORATION
    Inventors: Karen A. Moffat, Yulin Wang, Shigang Steven Qiu, John Lawrence Pawlak, Alexander N. Klymachyov, Kevin F. Marcell, Judith M. Vandewinckel, Wafa F. Bashir, Richard P. N. Veregin, Christopher M. Wolfe
  • Patent number: 9223239
    Abstract: Amorphous polyester resins and processes for making the same are disclosed herein. In particular, the process for making the resin provides resins with improved properties. The amorphous polyester resins have substantially reduced free fumaric acid as compared to that made from conventional processes. The toner resins are used to prepare toner compositions the have improved performance.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: December 29, 2015
    Assignee: XEROX CORPORATION
    Inventors: Karen A. Moffat, Yulin Wang, Shigang Steven Qiu, John Lawrence Pawlak, Alexander N. Klymachyov, Kevin F. Marcell, Judith M. Vandewinckel, Wafa F. Bashir, Richard P. N. Veregin, Christopher M. Wolfe
  • Patent number: 9195158
    Abstract: The instant disclosure describes methacrylate coated carrier resins with aromatic substituent groups with optionally carbon atoms replaced by heteroatoms such as S, N, and O for charge control and improved RH sensitivity.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: November 24, 2015
    Assignees: Xerox Corporation, NRC of Canada
    Inventors: Richard P N Veregin, Qingbin Li, Andriy Kovalenko, Sergey Gusarov, Daryl W Vanbesien, Michael S Hawkins