Patents by Inventor Leonard Richard Douglas

Leonard Richard Douglas 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: 5683928
    Abstract: A method is provided for the manufacture of precision electronic components such as resistors, inductors, and capacitors on a polymer or ceramic surface. The electronic components can be deposited and trimmed to precise or matched values without having precise depositions of all of the pre-patterned materials. Thin film electronic components are deposited on a surface, parameter values are measured or estimated, a correction offset file is generated, and the components are trimmed using adaptive lithography to a very close tolerance. A computer program can be used to enable the adjustment of electronic components by techniques such as changing the physical length of an inductor coil or resistor lead, or by changing a capacitor plate area.
    Type: Grant
    Filed: December 5, 1994
    Date of Patent: November 4, 1997
    Assignee: General Electric Company
    Inventors: Robert John Wojnarowski, James Wilson Rose, Ernest Wayne Balch, Leonard Richard Douglas, Evan Taylor Downey, Michael Gdula