Patents by Inventor Hartmut Downar

Hartmut Downar 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).

  • Infrared modulator
    Patent number: 5796107
    Abstract: The invention provides an IR modulator for synchronized interruption of an IR beam path in a thermal imaging device. A layer made of thermorefractive material is arranged in the beam path, and means are provided for changing the temperature of the thermorefractive layer.
    Type: Grant
    Filed: August 1, 1996
    Date of Patent: August 18, 1998
    Assignees: Dornier GmbH, Zeiss-Eltro Optronic GmbH
    Inventors: Wolf Buchtemann, Werner Scherber, Hartmut Downar
  • Controllable superconductor component
    Patent number: 5721197
    Abstract: A microelectronic thin-film device having a thin superconducting layer in contact with a thin quasi-insulating conversion layer. The critical current of the superconducting layer is controlled by application of a voltage to the conversion layer by means of a gate electrode, causing the conversion layer to undergo an insulator-metal transition.
    Type: Grant
    Filed: October 6, 1995
    Date of Patent: February 24, 1998
    Assignee: Dornier GmbH
    Inventors: Hartmut Downar, Werner Scherber, Thomas Peterreins, Paul Ziemann