Patents by Inventor Thanh-Huong T. Nguyen

Thanh-Huong T. Nguyen 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).

  • Patent number: 6246428
    Abstract: A method of thermal mass transfer printing a colorant including a binder media from a ribbon onto a first surface of a web having a non-homogeneous thermal conductivity, a non-planar printing surface, a non-homogeneous structure or chemical incompatibility. The first surface of the web is preheated prior to thermal mass transfer printing. The surface of the ribbon containing the colorant is positioned opposite the first surface of the heated web at an inner face. A thermal print head is positioned at the interface on the side of the ribbon opposite the colorant. The web is moved relative to the thermal print head. Printing is completed by selectively applying localized heat to the ribbon from the thermal print head and pressure at the interface to cause the transfer of colorant from the ribbon to the heated web.
    Type: Grant
    Filed: May 11, 1999
    Date of Patent: June 12, 2001
    Assignee: 3M Innovoative Properties Company
    Inventors: Thomas F. Look, Michael G. O'Reilly, Thanh-Huong T. Nguyen, Craig A. Schmidt