Patents by Inventor Yi Xin Gong

Yi Xin Gong 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: 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
  • Patent number: 8354213
    Abstract: The present disclosure provides processes for producing images of excellent color fidelity when incorporating a cyan toner with a lower colorant loading in addition to a first cyan toner. In embodiments, the cyan pigmented particles may be cyan emulsion aggregation toners. In accordance with the present disclosure, a pair of cyan toners are matched in color, wherein the color of a first cyan toner printed at a predetermined halftone area coverage on a substrate substantially matches the color of the solid (100%) printed patch of the second cyan toner, which is lighter than the first cyan toner, thus avoiding a visible hue shift on the print that would otherwise be objectionable. In embodiments, the light cyan toner is color matched by adding a hue-adjusting colorant or combination of colorants which absorb wavelengths of light between 500 and 600 nanometers, and optionally adding a shade-adjusting colorant or combination of colorants which absorb wavelengths of light between 400 and 500 nanometers.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: January 15, 2013
    Assignee: Xerox Corporation
    Inventors: Daryl W. Vanbesien, Karen Ann Moffat, Yi Xin Gong, Edul N. Dalal, Jing Wang, Richard P. N. Veregin, Jordan H. Wosnick, Cuong Vong, Valerie M. Farrugia
  • Patent number: 8288067
    Abstract: The present disclosure provides toners and processes for making said toners. In embodiments, the toners are invisible when viewed under natural light, but possess a UV additive that renders them visible when exposed to UV light of a specific wavelength. By selecting the appropriate UV additive and ionic crosslinker, with optional chelating agent, the gloss of the toner may be tailored to match the gloss of any substrate, such as paper, to which the toner is to be applied, thereby further enhancing its invisibility under visible light.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: October 16, 2012
    Assignee: Xerox Corporation
    Inventors: Yi Xin Gong, Shigang Qiu, Daryl W. Vanbesien, Gabriel Iftime, Edward Graham Zwartz, Karen Ann Moffat, Richard P. N. Veregin
  • Patent number: 8211600
    Abstract: The present disclosure provides processes for producing images of excellent color fidelity when incorporating a magenta toner with a lower colorant loading in addition to a first magenta toner. In embodiments, the magenta pigmented particles may be magenta emulsion aggregation toners. In accordance with the present disclosure, a pair of magenta toners are matched in color, wherein the color of a first magenta toner printed at a predetermined halftone area coverage on a substrate substantially matches the color of the solid (100%) printed patch of the second magenta toner, which is lighter than the first magenta toner, thus avoiding a visible hue shift on the print that would otherwise be objectionable.
    Type: Grant
    Filed: August 21, 2011
    Date of Patent: July 3, 2012
    Assignee: Xerox Corporation
    Inventors: Daryl Vanbesien, Karen Moffat, Yi Xin Gong, Edul Dalal, Jing Wang, Richard Veregin, Jordan Wosnick, Cuong Vong, Valerie Farrugia
  • Patent number: 8092963
    Abstract: The present disclosure provides processes for producing images of excellent color fidelity when incorporating a magenta toner with a lower colorant loading in addition to a first magenta toner. In embodiments, the magenta pigmented particles may be magenta emulsion aggregation toners. In accordance with the present disclosure, a pair of magenta toners are matched in color, wherein the color of a first magenta toner printed at a predetermined halftone area coverage on a substrate substantially matches the color of the solid (100%) printed patch of the second magenta toner, which is lighter than the first magenta toner, thus avoiding a visible hue shift on the print that would otherwise be objectionable.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: January 10, 2012
    Assignee: Xerox Corporation
    Inventors: Daryl W. Vanbesien, Karen Ann Moffat, Yi Xin Gong, Edul N. Dalal, Jing Wang, Richard P. N. Veregin, Jordan H. Wosnick, Cuong Vong, Valerie M. Farrugia
  • Publication number: 20110311909
    Abstract: The present disclosure provides processes for producing images of excellent color fidelity when incorporating a magenta toner with a lower colorant loading in addition to a first magenta toner. In embodiments, the magenta pigmented particles may be magenta emulsion aggregation toners. In accordance with the present disclosure, a pair of magenta toners are matched in color, wherein the color of a first magenta toner printed at a predetermined halftone area coverage on a substrate substantially matches the color of the solid (100%) printed patch of the second magenta toner, which is lighter than the first magenta toner, thus avoiding a visible hue shift on the print that would otherwise be objectionable.
    Type: Application
    Filed: August 21, 2011
    Publication date: December 22, 2011
    Applicant: XEROX CORPORATION
    Inventors: Daryl W. Vanbesien, Karen Ann Moffat, Yi Xin Gong, Edul N. Dalal, Jing Wang, Richard P.N. Veregin, Jordan H. Wosnick, Cuong Vong, Valerie M. Farrugia
  • Publication number: 20110177441
    Abstract: The present disclosure provides processes for producing images of excellent color fidelity when incorporating a cyan toner with a lower colorant loading in addition to a first cyan toner. In embodiments, the cyan pigmented particles may be cyan emulsion aggregation toners. In accordance with the present disclosure, a pair of cyan toners are matched in color, wherein the color of a first cyan toner printed at a predetermined halftone area coverage on a substrate substantially matches the color of the solid (100%) printed patch of the second cyan toner, which is lighter than the first cyan toner, thus avoiding a visible hue shift on the print that would otherwise be objectionable. In embodiments, the light cyan toner is color matched by adding a hue-adjusting colorant or combination of colorants which absorb wavelengths of light between 500 and 600 nanometers, and optionally adding a shade-adjusting colorant or combination of colorants which absorb wavelengths of light between 400 and 500 nanometers.
    Type: Application
    Filed: January 19, 2010
    Publication date: July 21, 2011
    Applicant: Xerox Corporation
    Inventors: Daryl W. Vanbesien, Karen Ann Moffat, Yi Xin Gong, Edul N. Dalal, Jing Wang, Richard P.N. Veregin, Jordan H. Wosnick, Cuong Vong, Valerie M. Farrugia
  • Publication number: 20110177442
    Abstract: The present disclosure provides processes for producing images of excellent color fidelity when incorporating a magenta toner with a lower colorant loading in addition to a first magenta toner. In embodiments, the magenta pigmented particles may be magenta emulsion aggregation toners. In accordance with the present disclosure, a pair of magenta toners are matched in color, wherein the color of a first magenta toner printed at a predetermined halftone area coverage on a substrate substantially matches the color of the solid (100%) printed patch of the second magenta toner, which is lighter than the first magenta toner, thus avoiding a visible hue shift on the print that would otherwise be objectionable.
    Type: Application
    Filed: January 19, 2010
    Publication date: July 21, 2011
    Applicant: XEROX CORPORATION
    Inventors: Daryl W. Vanbesien, Karen Ann Moffat, Yi Xin Gong, Edul N. Dalal, Jing Wang, Richard P.N. Veregin, Jordan H. Wosnick, Cuong Vong, Valerie M. Farrugia
  • Publication number: 20110052882
    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: Application
    Filed: August 25, 2009
    Publication date: March 3, 2011
    Applicant: 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
  • Publication number: 20100248118
    Abstract: The present disclosure provides toners and processes for making said toners. In embodiments, the toners are invisible when viewed under natural light, but possess a UV additive that renders them visible when exposed to UV light of a specific wavelength. By selecting the appropriate UV additive and ionic crosslinker, with optional chelating agent, the gloss of the toner may be tailored to match the gloss of any substrate, such as paper, to which the toner is to be applied, thereby further enhancing its invisibility under visible light.
    Type: Application
    Filed: March 26, 2009
    Publication date: September 30, 2010
    Applicant: Xerox Corporation
    Inventors: Yi Xin Gong, Shigang Qiu, Daryl W. Vanbesien, Gabriel Iftime, Edward Graham Zwartz, Karen Ann Moffat, Richard P.N. Veregin