Patents by Inventor Michael George Sloan

Michael George Sloan 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).

  • Photoconductor formulation containing boron nitride
    Patent number: 7920805
    Abstract: The present disclosure relates to incorporation of boron nitride in the charge transport layer of a photoconductor. The boron nitride may have an aspect ratio of greater than 1.0, a D50 mean particle size of less than about 10.0 ?m and be present at about 5.0% (wt) or less in the charge transport layer. The cartridge may also include toner particles wherein the toner particles have a size range of about 1-25 ?m and an average degree of circularity of about 0.90-1.0. The photoconductor containing boron nitride when used in an electrophotographic printer may then provide acceptable dark decay and/or photoinduced decay (PID) curves relative to photoconductors that do not contain boron nitride along with improved resistance to toner filming.
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: April 5, 2011
    Assignee: Lexmark International, Inc.
    Inventors: Mark Thomas Bellino, Weimei Luo, Michael George Sloan, Tanya Yvonne Thames
  • Photoconductor Formulation Containing Boron Nitride
    Publication number: 20090029275
    Abstract: The present disclosure relates to incorporation of boron nitride in the charge transport layer of a photoconductor. The boron nitride may have an aspect ratio of greater than 1.0, a D50 mean particle size of less than about 10.0 ?m and be present at about 5.0% (wt) or less in the charge transport layer. The cartridge may also include toner particles wherein the toner particles have a size range of about 1-25 ?m and an average degree of circularity of about 0.90-1.0. The photoconductor containing boron nitride when used in an electrophotographic printer may then provide acceptable dark decay and/or photoinduced decay (PID) curves relative to photoconductors that do not contain boron nitride along with improved resistance to toner filming.
    Type: Application
    Filed: July 24, 2007
    Publication date: January 29, 2009
    Inventors: Mark Thomas Bellino, Weimei Luo, Michael George Sloan, Tanya Yvonne Thames
  • Photoconductor containing silicone microspheres
    Patent number: 5994014
    Abstract: An electrophotographic photoconductor containing an aromatic polycarbonate binder resin and silicone microspheres provides improved wear resistance, increased useful life of the photoconductive drum, a high quality image over the life of the photoconductor, and improved coating uniformity.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: November 30, 1999
    Assignee: Lexmark International, Inc.
    Inventors: Garry Dale Hinch, Paul Dwight Kemmesat, Laura Lee Kierstein, Michael Thomas Moore, Michael George Sloan, Karin Ann Voll, Eric Lawrence Ziercher