Patents by Inventor Hu P. Le

Hu P. Le 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).

  • Phase change ink composition and phase change ink produced therefrom
    Patent number: 4889560
    Abstract: A phase change ink carrier composition is combined with a compatible colorant to form a phase change ink composition of this invention. A thin film of substantially uniform thickness of that phase change ink carrier composition, and the ink produced therefrom, has a high degree of lightness and chroma. The thin films of a substantially uniform thickness of the ink composition are also rectilinearly light transmissive. The carrier composition is preferably a fatty amide-containing compound.
    Type: Grant
    Filed: August 3, 1988
    Date of Patent: December 26, 1989
    Assignee: Tektronix, Inc.
    Inventors: Charles W. Jaeger, Donald R. Titterington, Hu P. Le, Jeffrey J. Sopko