Patents by Inventor Nhut Chau

Nhut Chau 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).

  • Thermal printhead with improved resolution and inter-dot isolation
    Patent number: 5170179
    Abstract: Pulse fingers are disposed on a heat-generating material which fingers are pulsed to change the resistance of portions of the heat-generating material. By such change in the resistance of the heat-generating material, electrical current diffusion is prevented and heat diffusion is permitted between the changed resistance portion of the heat-generating material, thereby providing high resolution character printing and so-called "continuous" graphics printing.
    Type: Grant
    Filed: February 1, 1991
    Date of Patent: December 8, 1992
    Assignee: Gulton Industries, Inc.
    Inventors: Kang Chen, Nhut Chau
  • Finger line screen printing method and apparatus
    Patent number: 4604298
    Abstract: A method of screen printing a conductive ink onto a substrate to form a pattern of narrow, closely spaced conductive lines. Before screening, the conductive ink is exposed to ambient air until its viscosity is in the range 700,000 to 900,000 centipoise at 70.degree. Fahrenheit.
    Type: Grant
    Filed: February 12, 1985
    Date of Patent: August 5, 1986
    Assignee: Gulton Industries, Inc.
    Inventors: Victor Shevtchuk, Nhut Chau, Richard C. Schuessler