Patents by Inventor Itipon Padunchwit

Itipon Padunchwit 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).

  • Color toner and developer compositions and processes for making and using such compositions
    Patent number: 7399566
    Abstract: The invention provides novel colored toner and developer compositions containing polymeric colorants. Such compositions may contain poly(oxyalkylene) or poly(alkylester) substituted color chromophores which are attached to relatively long chained ologomers. The color toner and developer compositions of the invention resist color bleeding and aggregation, and may retain their color fidelity over extended time periods. Such color toner compositions are useful in color imaging systems. The invention provides novel compositions that can readily be formulated and manufactured using the polymeric or oligomeric colorants. The toners of the invention may contain charge control agents, thermoplastic resins, colorants, and additives.
    Type: Grant
    Filed: January 18, 2005
    Date of Patent: July 15, 2008
    Assignee: Milliken & Company
    Inventors: Itipon Padunchwit, Gordon Boon Ann Lim, Jusong Xia, Kim Ieng Goh, Kheng Teck Chan
  • Color toner and developer compositions and processes for making and using such compositions
    Publication number: 20060160009
    Abstract: The invention provides novel colored toner and developer compositions containing polymeric colorants. Such compositions may contain poly(oxyalkylene) or poly(alkylester) substituted color chromophores which are attached to relatively long chained ologomers. The color toner and developer compositions of the invention resist color bleeding and aggregation, and may retain their color fidelity over extended time periods. Such color toner compositions are useful in color imaging systems. The invention provides novel compositions that can readily be formulated and manufactured using the polymeric or oligomeric colorants. The toners of the invention may contain charge control agents, thermoplastic resins, colorants, and additives.
    Type: Application
    Filed: January 18, 2005
    Publication date: July 20, 2006
    Inventors: Itipon Padunchwit, Gordon Lim, Jusong Xia, Kim Goh, Kheng Chan