Patents by Inventor James Robert Combes

James Robert Combes 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).

  • Magenta toner with binder resin of selected molecular weight composition
    Patent number: 8313880
    Abstract: The present disclosure relates to a magenta toner formulation that may be used in a toner printer cartridge for an electrophotographic printer. The magenta toner may include polymer resin binder containing three polymer resins with different number average molecular weight values. The concentration of such polymer resins may be selected to provide a desired temperature versus viscosity behavior for the magenta toner that may be configured to conform to the viscosity versus temperature provide for yellow, cyan and black toner.
    Type: Grant
    Filed: August 13, 2009
    Date of Patent: November 20, 2012
    Assignee: Lexmark International, Inc.
    Inventors: Danielle Renee Ashley, James Robert Combes, John Joseph Earley, Lale Gokbudak Lovell, George Pharris Marshall, Walter Mychajlowskij
  • Magenta Toner with Binder Resin of Selected Molecular Weight Composition
    Publication number: 20110039198
    Abstract: The present disclosure relates to a magenta toner formulation that may be used in a toner printer cartridge for an electrophotographic printer. The magenta toner may include polymer resin binder containing three polymer resins with different number average molecular weight values. The concentration of such polymer resins may be selected to provide a desired temperature versus viscosity behavior for the magenta toner that may be configured to conform to the viscosity versus temperature provide for yellow, cyan and black toner.
    Type: Application
    Filed: August 13, 2009
    Publication date: February 17, 2011
    Inventors: Danielle Renee Ashley, James Robert Combes, John Joseph Earley, Lale Gokbudak Lovell, George Pharris Marshall, Walter Mychajlowskij
  • Regulated Cooling for Chemically Prepared Toner Manufacture
    Publication number: 20090148786
    Abstract: The present disclosure relates generally to chemically prepared toner (CPT) that employs a regulated cooling process subsequent to coalescence and fusing. The cooling process may influence the distribution of domain morphology of the components within a toner particle such as controlling release agent domain formation and accompanying migration to the toner particle surface.
    Type: Application
    Filed: December 7, 2007
    Publication date: June 11, 2009
    Inventors: Danielle Renee Ashley, James Robert Combes, Donna Marie Erk, Lale Gokbudak Lovell, James Michael Piffarerio, William Albert Spalding
  • Toner Formulation
    Publication number: 20080299476
    Abstract: The present disclosure relates to a method of forming a toner composition, and to a toner composition, that has a controlled particle size distribution, wherein the particle size distribution may be controlled by adjusting the concentration of a charge control additive in a chemical process of toner manufacture. The toner may therefore have a controlled amount of toner particles having diameters of less than or equal to about 4.0 microns. The toner may therefore provide improved resistance to filming on a given printer component.
    Type: Application
    Filed: June 4, 2007
    Publication date: December 4, 2008
    Inventors: Danielle Renee Ashley, James Robert Combes, John Joseph Earley, Lale Gokbudak Lovell, George Pharris Marshall, Walter Mychajlowskij, Tao Yu