Patents by Inventor Joseph J. Hanak

Joseph J. Hanak 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).

  • High voltage series connected tandem junction solar battery
    Patent number: 4316049
    Abstract: A high voltage series connected tandem junction solar battery which comprises a plurality of strips of tandem junction solar cells of hydrogenated amorphous silicon having one optical path and electrically interconnected by a tunnel junction. The layers of hydrogenated amorphous silicon, arranged in a tandem configuration, can have the same bandgap or differing bandgaps. The tandem junction strip solar cells are series connected to produce a solar battery of any desired voltage.
    Type: Grant
    Filed: September 29, 1980
    Date of Patent: February 16, 1982
    Assignee: RCA Corporation
    Inventor: Joseph J. Hanak
  • Laser processing technique for fabricating series-connected and tandem junction series-connected solar cells into a solar battery
    Patent number: 4292092
    Abstract: A method of fabricating series-connected and tandem junction series-connected solar cells into a solar battery with laser scribing.
    Type: Grant
    Filed: June 2, 1980
    Date of Patent: September 29, 1981
    Assignee: RCA Corporation
    Inventor: Joseph J. Hanak
  • Tandem junction amorphous silicon solar cells
    Patent number: 4272641
    Abstract: An amorphous silicon solar cell has an active body with two or a series of layers of hydrogenated amorphous silicon arranged in a tandem stacked configuration with one optical path and electrically interconnected by a tunnel junction. The layers of hydrogenated amorphous silicon arranged in tandem configuration can have the same bandgap or differing bandgaps.
    Type: Grant
    Filed: January 4, 1980
    Date of Patent: June 9, 1981
    Assignee: RCA Corporation
    Inventor: Joseph J. Hanak
  • Method of removing the effects of electrical shorts and shunts created during the fabrication process of a solar cell
    Patent number: 4166918
    Abstract: A method of removing the effects of electrical shorts and shunts created during the fabrication process and improving the performance of a solar cell with a thick film cermet electrode opposite to the incident surface by applying a reverse bias voltage of sufficient magnitude to burn out the electrical shorts and shunts but less than the break down voltage of the solar cell.
    Type: Grant
    Filed: July 19, 1978
    Date of Patent: September 4, 1979
    Assignee: RCA Corporation
    Inventors: Gerald E. Nostrand, Joseph J. Hanak
  • Cermet layer for amorphous silicon solar cells
    Patent number: 4167015
    Abstract: A transparent high work function metal cermet forms a Schottky barrier in a Schottky barrier amorphous silicon solar cell and adheres well to the P+ layer in a PIN amorphous silicon solar cell.
    Type: Grant
    Filed: April 24, 1978
    Date of Patent: September 4, 1979
    Assignee: RCA Corporation
    Inventor: Joseph J. Hanak
  • Inverted amorphous silicon solar cell utilizing cermet layers
    Patent number: 4162505
    Abstract: An amorphous silicon solar cell incorporating a transparent high work function metal cermet incident to solar radiation and a thick film cermet contacting the amorphous silicon opposite to said incident surface.
    Type: Grant
    Filed: April 24, 1978
    Date of Patent: July 24, 1979
    Assignee: RCA Corporation
    Inventor: Joseph J. Hanak
  • Photodeposition of CRT screen structures using cermet IC filter
    Patent number: 4157215
    Abstract: Method of making a CRT screen structure includes projecting a light field through an IC filter having a tailored light transmission, through a photographic master, and incident upon a photosensitive layer. The IC filter, which adjusts the light intensity across the field, comprises a cermet layer constituted of inorganic light-absorbing metal particles in an inorganic light-transmitting medium; for example, a nickel-silica cermet.
    Type: Grant
    Filed: April 24, 1978
    Date of Patent: June 5, 1979
    Assignee: RCA Corporation
    Inventor: Joseph J. Hanak