Patents by Inventor Nithin Abraham

Nithin Abraham 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: 11604307
    Abstract: A dark mirror optical stack, particularly a low emittance, high absorbance dark mirror optical stack is provided. The dark mirror optical stack includes a polyimide substrate containing carbon filler, an aluminum layer on the polyimide substrate, a first silicon oxide layer on the aluminum layer, a chromium layer on the first silicon oxide layer, and a second silicon oxide layer on the chromium layer. In a particularly exemplary embodiment, the aluminum layer has an average thickness of 600 to 2000 Angstroms, the first and second silicon oxide layers have average thicknesses of 500 to 1000 Angstroms, and the chromium layer has an average thickness of 40 to 100 Angstroms.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: March 14, 2023
    Assignee: United States of America as represented by the Administrator of NASA
    Inventors: Mark Hasegawa, George Harris, Nithin Abraham, Christine Cottingham