Patents by Inventor Nam-Suk Ro

Nam-Suk Ro 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 processes
    Patent number: 7413842
    Abstract: A toner process comprising aggregating or coagulating a latex emulsion comprising a resin, a colorant and wax particles using an amount of polymetal ion coagulant to provide core particles; heating the core particles to provide micron size aggregates; optionally adding a second resin emulsion; adding a sequestering or complexing component and a base to remove the polymetal ion in a controlled manner; further heating the mixture to provide toner particles; and optionally, isolating the toner particles.
    Type: Grant
    Filed: August 22, 2005
    Date of Patent: August 19, 2008
    Assignee: Xerox Corporation
    Inventors: Daryl Vanbesien, David J. Sanders, Raj D. Patel, Christine D. Anderson, Patricia Ann Burns, Nam-Suk Ro
  • Toner processes
    Publication number: 20070042286
    Abstract: A toner process comprising aggregating or coagulating a latex emulsion comprising a resin, a colorant and wax particles using an amount of polymetal ion coagulant to provide core particles; heating the core particles to provide micron size aggregates; optionally adding a second resin emulsion; adding a sequestering or complexing component and a base to remove the polymetal ion in a controlled manner; further heating the mixture to provide toner particles; and optionally, isolating the toner particles.
    Type: Application
    Filed: August 22, 2005
    Publication date: February 22, 2007
    Inventors: Daryl Vanbesien, David Sanders, Raj Patel, Christine Anderson, Patricia Burns, Nam-Suk Ro