Patents by Inventor Nan-Xing Hu

Nan-Xing Hu 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: 9076975
    Abstract: An electronic device, such as a thin-film transistor, includes a substrate and a dielectric layer formed from a dielectric composition. The dielectric composition includes a dielectric material, a crosslinking agent, and an infrared absorbing agent. In particular embodiments, the dielectric material comprises a lower-k dielectric material and a higher-k dielectric polymer. When deposited, the lower-k dielectric material and the higher-k dielectric material form separate phases. The infrared absorbing agent allows the dielectric composition to attain a temperature that is significantly greater than the temperature attained by the substrate during curing. This difference in temperature allows the dielectric layer to be cured at relatively high temperatures and/or shorter time periods, permitting the selection of lower-cost substrate materials that would otherwise be deformed by the curing of the dielectric layer.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: July 7, 2015
    Assignee: Xerox Corporation
    Inventors: Yiliang Wu, Ping Liu, Anthony James Wigglesworth, Nan-Xing Hu
  • Patent number: 9069308
    Abstract: There is described a fuser member comprising a substrate layer and a surface layer disposed on the substrate. The surface layer comprises a non-woven polymer fiber matrix having dispersed throughout a cross-linked fluoropolymer and a release agent. The release agent is a liquid at a temperature about 100° C.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: June 30, 2015
    Assignee: Xerox Corporation
    Inventors: Yu Qi, Nan-Xing Hu, Brynn M. Dooley, Edward G. Zwartz
  • Patent number: 9062219
    Abstract: In accordance with the invention, there are articles including hydrophobic composite coating and methods of forming a hydrophobic composite coating. The method of forming a hydrophobic composite coating can include providing a substrate, wherein the substrate can include at least one region. The method can also include providing a dispersion including a plurality of carbon nanotubes, a stabilizer, a hydrophobic polymer, and a solvent, wherein the plurality of carbon nanotubes can be selected from the group consisting of single wall carbon nanotubes and multiple wall carbon nanotubes, and wherein each of the plurality of carbon nanotubes has an aspect ratio of at least about 10. The method can further include applying the dispersion to the one region to form a coated substrate and heating the coated substrate to form a hydrophobic composite coating such that the hydrophobic composite coating has a water contact angle of at least about 120°.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: June 23, 2015
    Assignee: XEROX CORPORATION
    Inventors: Yu Qi, Nan-Xing Hu, Qi Zhang, Gail Song, Sandra Gardner
  • Patent number: 9063509
    Abstract: An imaging apparatus includes an imaging member having a surface, a delivery member that is spaced apart from the imaging member, and a power source for generating an electric field between the imaging member surface and the delivery member. A functional material is electrohydrodynamically transferred from the delivery member to the imaging member surface when the electric field is generated.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: June 23, 2015
    Assignee: Xerox Corporation
    Inventors: Yu Liu, Yu Qi, Vladislav Skorokhod, Johann Junginger, Sarah Vella, Nan-Xing Hu
  • Patent number: 9058981
    Abstract: An electronic device, such as a thin-film transistor, includes a substrate and a dielectric layer formed from a dielectric composition. The dielectric composition includes a dielectric material, a crosslinking agent, and a thermal acid generator. In particular embodiments, the dielectric material comprises a lower-k dielectric material and a higher-k dielectric material. When deposited, the lower-k dielectric material and the higher-k dielectric material form separate phases. The thermal acid generator allows the dielectric layer to be cured at relatively lower temperatures and/or shorter time periods, permitting the selection of lower-cost substrate materials that would otherwise be deformed by the curing of the dielectric layer.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: June 16, 2015
    Assignee: Xerox Corporation
    Inventors: Yiliang Wu, Ping Liu, Anthony James Wigglesworth, Nan-Xing Hu
  • Patent number: 9052653
    Abstract: A fuser member comprising a substrate, and thereover, an outer layer comprising polysilsesquioxane additives, and an image forming apparatus containing the fuser member therein.
    Type: Grant
    Filed: August 5, 2008
    Date of Patent: June 9, 2015
    Assignee: XEROX CORPORATION
    Inventors: Carolyn Moorlag, Yu Qi, Jennifer A. Coggan, Nan-Xing Hu
  • Patent number: 9052671
    Abstract: Provided herein is a surface treatment method of oil contaminated xerographic prints which increases the adhesion of the print to levels close to the values corresponding to the original uncontaminated paper. Subjecting the contaminated surface to corona treatment alone and in combination with ultraviolet (UV) radiation and ozone can change the chemical structure of the surface of the paper in such a way that a highly polar surface is created as a consequence of this treatment, leading to enhanced adhesion properties of the xerographic print.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: June 9, 2015
    Assignee: XEROX CORPORATION
    Inventors: Guiqin Song, Edward G. Zwartz, Nicoleta Mihai, Nan-Xing Hu, T. Brian McAneney
  • Patent number: 9044922
    Abstract: A self-releasing fuser member for an image forming apparatus having a fluoropolymer with fluorocarbon chains bonded to the fluoropolymer via a linking group; a quaternary, tertiary, or secondary carbon atom; and a reactive group. The fluorocarbon chains are oriented nonparallel to the surface of the self-releasing fuser member. Image forming apparatuses having such self-releasing fuser members and methods of making such self-releasing fuser members.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: June 2, 2015
    Assignee: XEROX CORPORATION
    Inventors: Brynn M. Dooley, Yu Qi, Carolyn P. Moorlag, Qi Zhang, Nan-Xing Hu
  • Publication number: 20150140320
    Abstract: Described is a fuser member including a substrate and a release layer disposed on the substrate. The release layer includes a fluoropolymer having a plurality of metal fibers having a diameter of from about 5 nanometers to about 20 microns dispersed throughout the fluoropolymer. A method of manufacturing the fuser member is also provided.
    Type: Application
    Filed: November 18, 2013
    Publication date: May 21, 2015
    Applicant: Xerox Corporation
    Inventors: Brynn Mary Dooley, Yu Qi, Edward Graham Zwartz, Nan-Xing Hu
  • Publication number: 20150140882
    Abstract: A fuser member including a substrate and a release layer disposed on the substrate is described. The release layer includes a metal coated non-woven polymer fiber mesh wherein the metal coated non-woven polymer fiber mesh has pores of a size of from about 1 microns to about 50 microns and a fluoropolymer dispersed on and throughout the polymer matrix. A method of manufacturing the fuser member is also provided.
    Type: Application
    Filed: November 18, 2013
    Publication date: May 21, 2015
    Applicant: Xerox Corporation
    Inventors: Yu Qi, Brynn Mary Dooley, Suxia Yang, Ping Liu, Nan-Xing Hu
  • Publication number: 20150140881
    Abstract: Described is provided a composition of matter that includes a layer having a metal coated non-woven polymer fiber mesh. The metal coated non-woven polymer fiber mesh has pores of a size of from about 1 micron to about 50 microns, and a fluoropolymer dispersed on and throughout the metal coated non-woven polymer fiber mesh. A method of manufacturing is also provided.
    Type: Application
    Filed: November 18, 2013
    Publication date: May 21, 2015
    Applicant: Xerox Corporation
    Inventors: Brynn Mary Dooley, Yu Qi, Edward Graham Zwartz, Nan-Xing Hu
  • Publication number: 20150140319
    Abstract: A fuser member including a substrate and a release layer disposed on the substrate is provided. The fuser member includes a substrate and a release layer disposed on the substrate. The release layer includes non-woven polymer fibers having graphene particles dispersed along the fibers. A method of manufacturing the release layer is provided.
    Type: Application
    Filed: November 18, 2013
    Publication date: May 21, 2015
    Applicant: Xerox Corporation
    Inventors: Yu Qi, Qi Zhang, Brynn Mary Dooley, Suxia Yang, Nan-Xing Hu
  • Patent number: 9034423
    Abstract: A method of manufacturing a fuser member is described. The method includes obtaining a substrate and coating a composition of an anhydride capped polyamic acid oligomer, a multi-amine and a solvent on the substrate to form a polyimide gel layer on the substrate. The solvent is extracted from the polyimide gel layer with an extraction solvent. The extraction solvent is removed to form a polyimide aerogel layer having a porosity of from about 50 percent to about 95 percent. A fluoropolymer is coated on the polyimide aerogel layer and cured or melted to form a release layer.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: May 19, 2015
    Assignee: Xerox Corporation
    Inventors: Yu Qi, Nan-Xing Hu
  • Publication number: 20150132037
    Abstract: Methods for lubricating an imaging member include applying lubricant-containing capsules to the surface of the imaging member via a non-contact applicator. The capsules are applied upstream of a cleaning blade after image transfer to another substrate, such that the cleaning blade ruptures the capsules, thereby releasing the lubricant contained therein.
    Type: Application
    Filed: November 8, 2013
    Publication date: May 14, 2015
    Applicant: Xerox Corporation
    Inventors: Yu Liu, Johann Junginger, Sarah Vella, Cuong Vong, Naveen Chopra, Nan-Xing Hu
  • Publication number: 20150123041
    Abstract: An electronic device, such as a thin-film transistor, includes a semiconducting layer formed from a semiconductor composition. The semiconductor composition comprises a polymer binder and a small molecule semiconductor. The small molecule semiconductor in the semiconducting layer has a crystallite size of less than 100 nanometers. Devices formed from the composition exhibit high mobility and excellent stability.
    Type: Application
    Filed: January 16, 2015
    Publication date: May 7, 2015
    Inventors: Yiliang WU, Sandra J. GARDNER, Anthony James WIGGLESWORTH, Ping LIU, Nan-Xing HU
  • Patent number: 9012025
    Abstract: The present teachings disclose a fuser member comprising a substrate, a functional layer disposed on the substrate and an outer layer disposed on the functional layer. The outer layer comprises a cross-linked perfluorinated polyether.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: April 21, 2015
    Assignee: Xerox Corporation
    Inventors: Brynn M. Dooley, Yu Qi, Carolyn P. Moorlag, Qi Zhang, Nan-Xing Hu
  • Publication number: 20150093169
    Abstract: A fuser comprises a substrate and a composite layer formed on the substrate. The composite layer comprises a plurality of fluorosilane-treated graphene-comprising particles and a fluoropolymer. Methods of making a fuser and methods of fusing toner particles are also disclosed.
    Type: Application
    Filed: October 2, 2013
    Publication date: April 2, 2015
    Applicant: Xerox Corporation
    Inventors: Yu Qi, Qi Zhang, Suxia Yang, Edward G. Zwartz, Guiqin Gail Song, Nan-Xing Hu
  • Publication number: 20150093511
    Abstract: A method for forming a dispersion includes mixing graphene particles, a fluorosilane coupling agent and a first solvent to produce a first dispersion wherein the graphene particles are from about 0.1 to about 0.8 weight percent of the first dispersion. The method includes concentrating the first dispersion by removing the first solvent to produce a second dispersion wherein the graphene particles are from about 2.0 to about 10.0 weight percent of the concentrated dispersion. The concentrated dispersion is mixed with a fluoropolymer dispersion including a second solvent, a surfactant, and fluoropolymer particles wherein the fluoropolymer dispersion has a solids content of about 30 weight percent to about 50 weight percent to form a second dispersion. A polymer binder in a third solvent is mixed with the second dispersion to form the coating dispersion.
    Type: Application
    Filed: October 2, 2013
    Publication date: April 2, 2015
    Applicant: Xerox Corporation
    Inventors: Qi Zhang, Yu Qi, Sandra J. Gardner, Nan-Xing Hu
  • Publication number: 20150093584
    Abstract: A composition comprises a liquid continuous phase and a plurality of composite particles dispersed therein. The composite particles each comprise a fluorosilane-treated graphene-comprising particle and a fluoropolymer particle.
    Type: Application
    Filed: October 2, 2013
    Publication date: April 2, 2015
    Applicant: Xerox Corporation
    Inventors: Qi Zhang, Yu Qi, Brynn Dooley, Nan-Xing Hu
  • Patent number: 8994016
    Abstract: A dielectric layer for an electronic device, such as a thin-film transistor, is provided. The dielectric layer comprises a molecular glass. The resulting dielectric layer is very thin, pure, and stable. Processes and compositions for fabricating such a dielectric layer are also disclosed.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: March 31, 2015
    Assignee: Xerox Corporation
    Inventors: Yiliang Wu, Ping Liu, Nan-Xing Hu