Patents by Inventor James A. Hutchby

James A. Hutchby 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).

  • Patterned tunnel junction
    Patent number: H667
    Abstract: A multijunction solar cell is disclosed which uses a patterned intercell ohmic connection as the tunnel junction to connect a top solar cell in electrical and optical series with a bottom solar cell. By confining this patterned tunnel junction to shadowed areas directly beneath the top surface metallization grid, the tunnel junction is set free from the requirement that it be transparent and have band gaps greater than or equal to those of the top solar cell.
    Type: Grant
    Filed: May 14, 1987
    Date of Patent: September 5, 1989
    Assignee: The United States of America as represented by the Secretaryof the Air Force
    Inventors: Salah M. Bedair, Robert J. Markunas, Michael L. Timmons, James A. Hutchby, John R. Hauser