Patents by Inventor Zeying Ma

Zeying Ma 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: 7838574
    Abstract: Disclosed herein are pigment dispersions and inks formulated using the same; including at least one dispersed pigment, an aqueous carrier; and at least one block copolymer dispersant having Structure I and comprising a hydrophobic block (A) and a hydrophilic block (B); at least one block copolymer having Structure I and comprising a hydrophobic block (A) and a hydrophilic block (B);
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: November 23, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zeying Ma, Howard A. Doumaux, Sivapackia Ganapathiappan
  • Patent number: 7812067
    Abstract: Disclosed herein are inks including an aqueous vehicle; at least one encapsulant-dispersed pigment; and at least one block copolymer binder dispersed throughout the aqueous vehicle and having Structure I and comprising a hydrophobic block (A) and a hydrophilic block (B);
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: October 12, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Howard A. Doumaux, Zeying Ma, Sivapackia Ganapathiappan
  • Publication number: 20100240826
    Abstract: Disclosed herein are pigment dispersions and inks formulated using the same; including at least one dispersed pigment, an aqueous carrier; and at least one block copolymer dispersant having Structure I and comprising a hydrophobic block (A) and a hydrophilic block (B); at least one block copolymer having Structure I and comprising a hydrophobic block (A) and a hydrophilic block (B);
    Type: Application
    Filed: May 28, 2010
    Publication date: September 23, 2010
    Inventors: Zeying Ma, Howard A. Doumaux, Sivapackia Ganapathiappan
  • Publication number: 20100222499
    Abstract: Disclosed herein are inks including an aqueous vehicle; at least one encapsulant-dispersed pigment; and at least one block copolymer binder dispersed throughout the aqueous vehicle and having Structure I and comprising a hydrophobic block (A) and a hydrophilic block (B);
    Type: Application
    Filed: May 11, 2010
    Publication date: September 2, 2010
    Inventors: Howard A. Doumaux, Zeying Ma, Sivapackia Ganapathiappan
  • Publication number: 20100222497
    Abstract: Disclosed herein are inks including an aqueous vehicle; at least one encapsulant-dispersed pigment; and at least one block copolymer binder dispersed throughout the aqueous vehicle and having Structure I and comprising a hydrophobic block (A) and a hydrophilic block (B);
    Type: Application
    Filed: May 11, 2010
    Publication date: September 2, 2010
    Inventors: Howard A. Doumaux, Zeying Ma, Sivapackia Ganapathiappan
  • Publication number: 20100179278
    Abstract: Briefly described, embodiments of this disclosure include ink formulation and modified pigments. One exemplary modified pigment, among others, includes a pigment A represented by the formula in FIG. 3.
    Type: Application
    Filed: March 22, 2010
    Publication date: July 15, 2010
    Inventors: Zeying Ma, Gregg A. Lane, Yuan Yu, Xiaohe Chen, George M. Sarkisian
  • Patent number: 7741383
    Abstract: The present invention is drawn to versatile ink-jet inks, ink-jet ink sets, and methods of printing images with improved quality when printed on both glossy coated media and on plain paper. In accordance with these embodiments, an ink-jet ink formulated for printing on plain paper and glossy coated media can comprise a liquid vehicle including water, an organic solvent, and an organic amine; and a polymer-encapsulated, acid-sensitive pigment colorant dispersed the liquid vehicle.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: June 22, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Anne M. Kelly-Rowley, Zeying Ma, David M. Mahli, Peter C. Morris, John M. Gardner
  • Patent number: 7728062
    Abstract: Briefly described, embodiments of this disclosure include ink formulation and modified pigments. One exemplary modified pigment, among others, includes a pigment A represented by the formula in FIG. 3.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: June 1, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zeying Ma, Gregg A. Lane, Yuan Yu, Xiaohe Chen, George M. Sarkisian
  • Patent number: 7678186
    Abstract: A neutral gray or black ink and combinations thereof for ink-jet printing, comprising: an ink vehicle; carbon black; another colored pigment or pigments such as a combination of cyan and violet pigments; wherein the carbon black and colored pigments are associated with a polymer or polymers which render the carbon black and pigments dispersible in aqueous solution.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: March 16, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Stephen W. Bauer, Zeying Ma
  • Patent number: 7655707
    Abstract: Compositions and methods of printing an ink-jet image are provided. The composition can be an ink-jet ink comprising an aqueous liquid vehicle, polymer-encapsulated pigment solids dispersed in the liquid, a first copolymeric binder, and a second copolymeric binder. The polymer-encapsulated pigment solids can have a pigment core and a copolymeric shell, wherein the copolymeric shell includes multiple polymerized monomers. The first copolymeric binder can include at least one of the multiple polymerized monomers but which is different than the copolymeric shell. The second copolymeric binder can include at least one of the multiple polymerized monomers, but is also different than the copolymeric shell and the first copolymeric binder.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: February 2, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Zeying Ma
  • Publication number: 20090247687
    Abstract: Briefly described, embodiments of this disclosure include ink formulation and modified pigments. One exemplary modified pigment, among others, includes a pigment A represented by the formula in FIG. 3.
    Type: Application
    Filed: June 11, 2009
    Publication date: October 1, 2009
    Inventors: Zeying Ma, Gregg A. Lane, Yuan Yu, Xiaohe Chen, George M. Sarkisian
  • Patent number: 7563842
    Abstract: Briefly described, embodiments of this disclosure include ink formulation and modified pigments. One exemplary modified pigment, among others, includes a pigment A represented by the formula in FIG. 3.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: July 21, 2009
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zeying Ma, Gregg A. Lane, Yuan Yu, Xiaohe Chen, George M. Sarkisian
  • Publication number: 20090033728
    Abstract: An ink set includes a red ink and a magenta ink. The red ink includes an effective amount of a red pigment having a predetermined red/green lambda cutoff, and the magenta ink includes an effective amount of a magenta pigment having a predetermined red/green lambda cutoff that is substantially similar to the predetermined lambda cutoff of the red pigment.
    Type: Application
    Filed: July 31, 2007
    Publication date: February 5, 2009
    Inventors: Zeying Ma, Alexey S. Kabalnov, Shao-Wei Li, Dennis Z. Guo, Stephen W. Bauer
  • Publication number: 20090033729
    Abstract: An ink set includes a light magenta ink and a dark magenta ink. The light magenta ink includes an effective amount of a pigment having a red/green lambda cutoff ranging from about 585 nm to about 600 nm, and reflecting at least about 14% of blue light at a wavelength of about 470 nm when measured at a density at which the light magenta ink provides a maximum magenta chroma. The dark magenta ink includes an effective amount of a pigment having a red/green lambda cutoff greater than or equal to about 605 nm.
    Type: Application
    Filed: July 31, 2007
    Publication date: February 5, 2009
    Inventors: Stephen W. Bauer, Zeying Ma, Gregg A. Lane
  • Patent number: 7478903
    Abstract: An ink set for inkjet printing includes a cyan ink having a first hue angle h° value between approximately 200 and approximately 260, a magenta ink having a second hue angle h° value between approximately 320 and approximately 10, a yellow ink having a third hue angle h° value between approximately 80 and approximately 120, an ink selected from the group consisting of orange and red inks having a fourth hue h° value between approximately 10 and approximately 80, a green ink having a fifth hue h° value between approximately 120 and approximately 200, an ink selected from the group consisting of blue and violet inks having a sixth hue h° value between approximately 260 and approximately 320, and at least one matte black ink having an average carbon black particle size of from about 70 to about 200 nm and a first lightness L* value, and at least one photoblack ink having an average carbon black particle size of from about 20 to about 130 nm and a second lightness L* value.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: January 20, 2009
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zeying Ma, Stephen W. Bauer
  • Publication number: 20080266371
    Abstract: A system and associated methods for printing matte and glossy images on a glossy media substrate comprising an ink set that comprises at least one pigmented ink-jet ink including an anionic surface charged pigment dispersed in a first liquid vehicle and a substantially colorless matting liquid with at least one matting agent dispersed or solvated in a second liquid vehicle. Additionally, when the pigmented ink-jet ink is printed on the glossy media substrate alone, the pigmented ink-jet ink has a glossy appearance, and wherein when the colorless matting liquid is overprinted or underprinted with respect to the pigmented ink-jet ink on the glossy media substrate, the pigmented ink-jet ink combined with the matting liquid exhibits a visually perceptible matte appearance compared to the glossy appearance of the ink-jet ink printed alone.
    Type: Application
    Filed: April 27, 2007
    Publication date: October 30, 2008
    Inventors: Zeying Ma, Kai-Kong Iu, Gregg A. Lane
  • Publication number: 20080231873
    Abstract: One embodiment of an ink set includes a light gray ink, a medium gray ink, and a black ink. Each of the inks in the ink set includes a carboxylic polymer. The light gray ink has a carboxylic polymer load equal to or greater than about 3 wt %. The medium gray ink has a carboxylic polymer load ranging from about 1 wt % to about 3 wt %. The black ink has a carboxylic polymer load ranging from about 0.5 wt % to about 2 wt %. Another embodiment of an ink set includes at least one of a light cyan, a light magenta, or a light gray ink having a carboxylic polymer load equal to or greater than about 3 wt %, and an other ink selected from a black ink or a colored ink.
    Type: Application
    Filed: March 21, 2007
    Publication date: September 25, 2008
    Inventors: Alexey S. Kabalnov, Tadashi Yoshida, Stephen W. Bauer, Zeying Ma
  • Publication number: 20080194758
    Abstract: Disclosed herein are pigment dispersions and inks formulated using the same; including at least one dispersed pigment, an aqueous carrier; and at least one block copolymer dispersant having Structure I and comprising a hydrophobic block (A) and a hydrophilic block (B); at least one block copolymer having Structure I and comprising a hydrophobic block (A) and a hydrophilic block (B);
    Type: Application
    Filed: October 20, 2006
    Publication date: August 14, 2008
    Inventors: Zeying Ma, Howard A. Doumaux, Sivapackia Ganapathiappan
  • Publication number: 20080094457
    Abstract: Disclosed herein are inks including an aqueous vehicle; at least one encapsulant-dispersed pigment; and at least one block copolymer binder dispersed throughout the aqueous vehicle and having Structure I and comprising a hydrophobic block (A) and a hydrophilic block (B);
    Type: Application
    Filed: October 20, 2006
    Publication date: April 24, 2008
    Inventors: Howard A Doumaux, Zeying Ma, Sivapackia Ganapathiappan
  • Publication number: 20080024575
    Abstract: An inkjet ink set includes eleven colored inks and a surface enhancing ink. The eleven colored inks include a magenta ink, a light magenta ink, a yellow ink, a cyan ink, a light cyan ink, a medium gray ink, a light gray ink, a photo black ink, a red ink, a green ink, and a blue ink. The surface enhancing ink is configured to enhance gloss of an image formed with at least one of the eleven colored inks.
    Type: Application
    Filed: July 31, 2006
    Publication date: January 31, 2008
    Inventors: Shunqiong Yue, Peter C. Morris, Anne M. Kelly-Rowley, Zeying Ma, David Mahli, Howard A. Doumaux, Gregg A. Lane, John M. Gardner