Patents by Inventor David Joseph Kapolnek

David Joseph Kapolnek 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).

  • Method of making full color monolithic gan based leds
    Patent number: 5795798
    Abstract: A method and apparatus for producing full-color luminescent monolithic semiconductor devices. Each portion of the device is bandgap engineered by using different dopants to change the direct bandgap of selected areas of each region, thereby allowing that region to produce different wavelengths of emitted light at high efficiencies.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: August 18, 1998
    Assignee: The Regents of the University of California
    Inventors: Umesh Kumar Mishra, Steven P. DenBaars, David Joseph Kapolnek