Patents by Inventor Satyanarayan A. Srinivsan

Satyanarayan A. Srinivsan 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).

  • Toner
    Patent number: 7601473
    Abstract: The invention relates to a developer for developing electrostatic images. The developer includes magnetic carrier particles at a loading of from 60 to 99 weight percent of the developer. Toner particles are at a loading of 1 to 40 weight percent of the developer. The toner particles include a resin core particle having an outer surface and 0.05 to 5 weight percent a first metal oxide powder is substantially fixed to the outer surface. The toner particles further include 0.05 to 2 weight percent of a second metal oxide powder that is substantially free to transfer between outer surface of the toner particles and an outer surface of the magnetic carrier surface.
    Type: Grant
    Filed: June 23, 2006
    Date of Patent: October 13, 2009
    Assignee: Eastman Kodak Company
    Inventors: Kevin D. Lofftus, Satyanarayan Srinivsan, David D. Putnam, Peter S. Alexandrovich
  • Toner
    Publication number: 20070298343
    Abstract: The invention relates to a developer for developing electrostatic images. The developer includes magnetic carrier particles at a loading of from 60 to 99 weight percent of the developer. Toner particles are at a loading of 1 to 40 weight percent of the developer. The toner particles include a resin core particle having an outer surface and 0.05 to 5 weight percent a first metal oxide powder is substantially fixed to the outer surface. The toner particles further include 0.05 to 2 weight percent of a second metal oxide powder that is substantially free to transfer between outer surface of the toner particles and an outer surface of the magnetic carrier surface.
    Type: Application
    Filed: June 23, 2006
    Publication date: December 27, 2007
    Inventors: Kevin D. Lofftus, Satyanarayan Srinivsan, David D. Putnam, Peter S. Alexandrovich
  • 2,4-dicyanoglutarimides negative charge control agents for electrostatographic toners and developers
    Patent number: 6365311
    Abstract: The invention, in its broader aspects provides an electrophotographic toner having polymeric binder and 2,4-dicyanoglutarimide negative charge control agents represented by the following formula: wherein R1 and R2 are defined in the specification.
    Type: Grant
    Filed: September 14, 2000
    Date of Patent: April 2, 2002
    Assignee: Eastman Kodak Company
    Inventors: John C. Wilson, Gretchen S. Mcgrath, Satyanarayan A. Srinivsan