Patents by Inventor Richard P. Veregin
Richard P. 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).
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Patent number: 9069275Abstract: The disclosure generally describes carrier resins, and in particular, resins used for carrier coatings which include at least one ester functional group and at least one cyclic aliphatic group containing at least one nitrogen atom in the cyclic ring structure. Carriers having such resins in the coating exhibit high charge and excellent relative humidity (RH) sensitivity of charge to changing environmental conditions.Type: GrantFiled: April 3, 2013Date of Patent: June 30, 2015Assignees: XEROX CORPORATION, NATIONAL RESEARCH COUNCIL OF CANADAInventors: Richard P. Veregin, Qingbin Li, Andriy Kovalenko, Sergey Gusarov, Darren Makeiff, Valerie Farrugia, Michael S. Hawkins
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Publication number: 20140302435Abstract: The disclosure generally describes carrier resins, and in particular, resins used for carrier coatings which include at least one ester functional group and at least one cyclic aliphatic group containing at least one nitrogen atom in the cyclic ring structure. Carriers having such resins in the coating exhibit high charge and excellent relative humidity (RH) sensitivity of charge to changing environmental conditions.Type: ApplicationFiled: April 3, 2013Publication date: October 9, 2014Applicants: National Research Council of Canada ("NRC"), XEROX CORPORATIONInventors: RICHARD P. VEREGIN, Qingbin Li, Andriy Kovalenko, Sergey Gusarov, Darren Makeiff, Valerie Farrugia, Michael S. Hawkins
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Publication number: 20140295333Abstract: The presently disclosed embodiments relate generally to image forming systems comprising imaging apparatus members and toner compositions. More specifically, the present embodiments relate to specific toner compositions for use with electrophotographic imaging members comprising an overcoat layer protecting the imaging member surface and a contact type charging device, such as a “bias charge roll” (BCR). The toner compositions comprise a combination of additives that provide an image forming system that does not suffer from the commonly observed deletion and imaging member wear issues.Type: ApplicationFiled: March 29, 2013Publication date: October 2, 2014Applicant: XEROX CORPORATIONInventors: Richard A. Klenkler, Yu Liu, Sarah J. Vella, Michael S. Hawkins, Richard P. Veregin, Vladislav Skorokhod, Thomas R. Pickering
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Publication number: 20140205942Abstract: The disclosure relates generally to toner additives, and in particular, toner additives that provide desired higher and stable toner charge. The toner additives comprise silica nanotubes in combination with or in place of the commonly used silica or titania particulate additives.Type: ApplicationFiled: January 18, 2013Publication date: July 24, 2014Applicant: XEROX CORPORATIONInventors: PADAM K. ANGRA, Richard P. Veregin
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Patent number: 8785096Abstract: The disclosure relates generally to toner additives, and in particular, toner additives that provide desired higher and stable toner charge. The toner additives comprise silica nanotubes in combination with or in place of the commonly used silica or titania particulate additives.Type: GrantFiled: January 18, 2013Date of Patent: July 22, 2014Assignee: Xerox CorporationInventors: Padam K. Angra, Richard P. Veregin
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Patent number: 8785092Abstract: The disclosure relates generally to toner additives, and in particular, toner additives that provide desired higher toner charge and low relative humidity (RH) sensitivity. The toner additives comprise titania nanotubes or titania nanosheets in combination with or in place of the commonly used anatase or rutile crystalline titania.Type: GrantFiled: December 5, 2012Date of Patent: July 22, 2014Assignees: Xerox Corporation, National Research Council of CanadaInventors: Richard P. Veregin, Qingbin Li, Andriy Kovalenko, Sergey Gusarov
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Publication number: 20140154621Abstract: The disclosure relates generally to toner additives, and in particular, toner additives that provide desired higher toner charge and low relative humidity (RH) sensitivity. The toner additives comprise titania nanotubes or titania nanosheets in combination with or in place of the commonly used anatase or rutile crystalline titania.Type: ApplicationFiled: December 5, 2012Publication date: June 5, 2014Applicants: NATIONAL RESEARCH COUNCIL OF CANADA, XEROX CORPORATIONInventors: RICHARD P. VEREGIN, Qingbin Li, Andriy Kovalenko, Sergey Gusarov
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Publication number: 20140154622Abstract: A carrier coating comprising a metal core and a polymeric coating that may be used to form toner. The carrier coating, through how it is made, exhibits improved coating abilities that may be used to completely coat carrier particles, and thus provide excellent aging performance.Type: ApplicationFiled: December 3, 2012Publication date: June 5, 2014Applicant: XEROX CORPORATIONInventors: VALERIE FARRUGIA, Paul J. Gerroir, Michael S. Hawkins, Richard P. Veregin, Karen Moffat
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Patent number: 7312010Abstract: A toner having at least one binder, at least one colorant and external additives. The external additives include at least one of silica and titania, and at least two metal stearates. A developer may be produced including the toner having at least two metal stearates and a carrier. An electrophotographic machine includes the toner with two metal stearates.Type: GrantFiled: March 31, 2005Date of Patent: December 25, 2007Assignee: Xerox CorporationInventors: Richard P. Veregin, Maria N. McDougall, Eric Strohm, Dwight J. Tshudy, Thomas R. Pickering
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Publication number: 20010045971Abstract: Disclosed is a process for depositing marking material onto a substrate which comprises (a) providing a propellant to a head structure, said head structure having a channel therein, said channel having an exit orifice with a width no larger than about 250 microns through which the propellant can flow, said propellant flowing through the channel to form thereby a propellant stream having kinetic energy, said channel directing the propellant stream toward the substrate, and (b) controllably introducing a particulate marking material into the propellant stream in the channel, wherein the kinetic energy of the propellant particle stream causes the particulate marking material to impact the substrate, and wherein the particulate marking material comprises particles which comprise a resin and a colorant, said particles having an average particle diameter of no more than about 7 microns and a particle size distribution of GSD equal to no more than about 1.Type: ApplicationFiled: September 30, 1999Publication date: November 29, 2001Inventors: KAREN A. MOFFAT, RICHARD P. VEREGIN, MARIA N. MCDOUGALL, PHILIP FLOYD, JAAN NOOLANDI, T.BRIAN MCANENEY, DANIELLE C. BOILS
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Patent number: 5153091Abstract: An ionographic process which comprises the generation of an image comprised of characters, and developing the image with a toner mixture comprised of an encapsulated toner and a toner free of encapsulation.Type: GrantFiled: December 24, 1990Date of Patent: October 6, 1992Assignee: Xerox CorporationInventors: Richard P. Veregin, Jonathan D. Nash, Barkev Keoshkerian