Patents by Inventor Charles P. Lusignan

Charles P. Lusignan 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).

  • Publication number: 20120077000
    Abstract: A process of producing an image including transferring porous polymeric marking particles to a receiver, and fixing the marking particles to the receiver by applying heat and pressure by contacting the marking particles with a heated fuser member including a topcoat layer having a storage modulus of at least 10 MPa at 175° C. In particular embodiments, the invention is specifically directed towards fusing porous toner materials, and enables reducing the image relief, toner spread, and differential gloss of resulting fused toner images. Higher gloss and reduced differential gloss is obtained at similar or reduced toner spread, measured by toner particle area gain, allowing the use of reduced fusing conditions compared to solid toners.
    Type: Application
    Filed: September 24, 2010
    Publication date: March 29, 2012
    Inventors: David D. Putnam, Mridula Nair, Joseph S. Sedita, Charles P. Lusignan, Po-Jen Shih
  • Patent number: 7754409
    Abstract: The present invention is a method of manufacturing toner particles that includes providing a first emulsion of a first aqueous phase comprising a pore stabilizing hydrocolloid dispersed in an organic solution containing a polymer. The first emulsion is dispersed in a second aqueous phase to form a second emulsion that is sheared in the presence of a stabilizing agent to form droplets of the first emulsion in the second aqueous phase. The organic solution is evaporated from the droplets to form porous toner particles.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: July 13, 2010
    Assignee: Eastman Kodak Company
    Inventors: Mridula Nair, David C. Boris, Charles P. Lusignan, Dennis J. Massa, Tamara K. Jones, Anita M. Fees
  • Publication number: 20100122654
    Abstract: Methods and apparatuses are provided for assembling a structure on a support having a pattern of binding sites. In accordance with the method, a first fluid is provided on the surface of the support with the first fluid being of a type that that increases viscosity when cooled, the first fluid having first micro-components suspended therein each adapted to engage the binding sites. First fluid proximate to selected binding sites is cooled to increase the viscosity of the responsive fluid proximate to the selected binding sites so that the first micro-components suspended in the first fluid are inhibited from engaging the selected binding sites.
    Type: Application
    Filed: January 26, 2010
    Publication date: May 20, 2010
    Inventors: Ravi Sharma, Charles P. Lusignan
  • Patent number: 7687277
    Abstract: Methods and apparatuses are provided for assembling a structure on a support having a pattern of binding sites. In accordance with the method, a first fluid is provided on the surface of the support with the first fluid being of a type that that increases viscosity when cooled, the first fluid having first micro-components suspended therein each adapted to engage the binding sites. First fluid proximate to selected binding sites is cooled to increase the viscosity of the responsive fluid proximate to the selected binding sites so that the first micro-components suspended in the first fluid are inhibited from engaging the selected binding sites.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: March 30, 2010
    Assignee: Eastman Kodak Company
    Inventors: Ravi Sharma, Charles P. Lusignan
  • Publication number: 20080176164
    Abstract: The present invention is a method of manufacturing toner particles that includes providing a first emulsion of a first aqueous phase comprising a pore stabilizing hydrocolloid dispersed in an organic solution containing a polymer. The first emulsion is dispersed in a second aqueous phase to form a second emulsion that is sheared in the presence of a stabilizing agent to form droplets of the first emulsion in the second aqueous phase. The organic solution is evaporated from the droplets to form porous toner particles.
    Type: Application
    Filed: January 18, 2007
    Publication date: July 24, 2008
    Inventors: Mridula Nair, David C. Boris, Charles P. Lusignan, Dennis J. Massa, Tamara K. Jones, Anita M. Fees