Patents by Inventor Kayong Koch

Kayong Koch 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).

  • Magnetic image character recognition processes with encapsulated toners
    Patent number: 5780190
    Abstract: An ionographic process which comprises the generation of a latent image comprised of characters; developing the image with an encapsulated magnetic toner comprised of a core comprised of a polymer and magnetite and wherein the core is encapsulated within a polymeric shell; and subsequently providing the developed image with magnetic ink characters thereon to a reader/sorter device.
    Type: Grant
    Filed: December 4, 1989
    Date of Patent: July 14, 1998
    Assignee: Xerox Corporation
    Inventors: Nancy A. Listigovers, Richard P. N. Veregin, Fernando P. Yulo, Kayong Koch
  • Encapsulated toner compositions
    Patent number: 5013630
    Abstract: An encapsulated toner composition comprised of a core comprised of pigments or dyes, and a polysiloxane-incorporated core binder resin, which core is encapsulated in a shell.
    Type: Grant
    Filed: August 18, 1989
    Date of Patent: May 7, 1991
    Assignee: Xerox Corporation
    Inventors: Beng S. Ong, Grazyna Kmiecik-Lawrynowicz, Fernando Yulo, Kayong Koch