Patents by Inventor Patrick J. Whittaker

Patrick J. Whittaker 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).

  • Kenaf imaging base and method of formation
    Patent number: 6692798
    Abstract: This invention relates to an imaging member comprising an image layer and a paper base comprising a mixture of vegetable fibers and wood fibers wherein said vegetable fibers comprise between 5 and 25 percent by weight of said paper base.
    Type: Grant
    Filed: July 24, 2000
    Date of Patent: February 17, 2004
    Assignee: Eastman Kodak Company
    Inventors: Suresh Sunderrajan, Sandra J. Dagan, Robert P. Bourdelais, Peter T. Aylward, Patrick J. Whittaker
  • Glossy ink jet recording element
    Patent number: 6635319
    Abstract: An ink jet recording element comprising a substrate having thereon an image-receiving layer comprising an inorganic, anionic pigment, an organic, anionic binder, an organic, cationic mordant and thermoplastic polymer particles.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: October 21, 2003
    Assignee: Eastman Kodak Company
    Inventors: Suresh Sunderrajan, Sridhar Sadasivan, Michelle M. Oakland, Patrick J. Whittaker, John W. Janssen, Craig T. Mollon
  • Ink jet recording element
    Patent number: 6632486
    Abstract: An ink jet recording element comprising a substrate having thereon an image-receiving layer comprising an inorganic, anionic pigment, an organic, anionic binder and an organic, cationic mordant.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: October 14, 2003
    Assignee: Eastman Kodak Company
    Inventors: Sridhar Sadasivan, Suresh Sunderrajan, Michelle M. Oakland, Patrick J. Whittaker, Elwood C. Samons, Craig T. Mollon
  • Ink jet printing method
    Patent number: 6447114
    Abstract: An ink jet printing method comprising the steps of: a) providing an ink jet printer that is responsive to digital data signals; b) loading the printer with an ink jet recording element comprising a substrate having thereon an image-receiving layer comprising an inorganic, anionic pigment, an organic, anionic binder and an organic, cationic mordant, and a porous overcoat layer located over the image-receiving layer, the porous overcoat layer comprising an inorganic pigment and an organic, anionic, binder, wherein the refractive index of the inorganic pigment in the overcoat layer is at least 0.05 refractive index units less than the refractive index of the inorganic, anionic pigment in the image-receiving layer; c) loading the printer with an ink jet ink composition; and d) printing on the recording element using the ink jet ink in response to the digital data signals.
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: September 10, 2002
    Assignee: Eastman Kodak Company
    Inventors: Suresh Sunderrajan, Sridhar Sadasivan, Patrick J. Whittaker, John W. Janssen
  • Ink jet recording element
    Patent number: 6447882
    Abstract: An ink jet recording element comprising a substrate having thereon an image-receiving layer comprising an inorganic, anionic pigment, an organic, anionic binder and an organic, cationic mordant, and a porous overcoat layer located over the image-receiving layer, the porous overcoat layer comprising an inorganic pigment and an organic, anionic, binder, wherein the refractive index of the inorganic pigment in the overcoat layer is at least 0.05 refractive index units less than the refractive index of the inorganic, anionic pigment in the image-receiving layer.
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: September 10, 2002
    Assignee: Eastman Kodak Company
    Inventors: Suresh Sunderrajan, Sridhar Sadasivan, Patrick J. Whittaker, John W. Jannsen
  • Ink jet printing method
    Patent number: 6347866
    Abstract: An ink jet printing method having the steps of: a) providing an ink jet printer that is responsive to digital data signals; b) loading the printer with an ink jet recording element of a substrate having thereon an image-receiving layer of an inorganic, anionic pigment, an organic, anionic binder, an organic, cationic mordant and thermoplastic polymer particles; c) loading the printer with an ink jet ink composition; and d) printing on the recording element using the ink jet ink in response to the digital data signals.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: February 19, 2002
    Assignee: Eastman Kodak Company
    Inventors: Suresh Sunderrajan, Sridhar Sadasivan, Michelle M. Oakland, Patrick J. Whittaker, John W. Janssen, Craig T. Mollon
  • Method of preparing a stable coating
    Patent number: 6335395
    Abstract: A process for making a stable coating comprising an inorganic, anionic pigment, an organic, anionic binder and an organic, cationic mordant comprising: a) mixing the inorganic, anionic pigment with the organic, cationic mordant; b) lowering the pH of the mixture to below about 4; and c) adding the organic, anionic binder to the mixture, thus providing a coating composition which has an approximately constant viscosity over a period of time.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: January 1, 2002
    Assignee: Eastman Kodak Company
    Inventors: Sridhar Sadasivan, Suresh Sunderrajan, Michelle M. Oakland, Patrick J. Whittaker, Elwood C. Samons, Craig T. Mollon