Patents by Inventor Alain Friedrich

Alain Friedrich 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).

  • Magnetoresistive sensor
    Patent number: 5134533
    Abstract: The present invention concerns a magnetroesistive sensor. In this sensor, the sensitive element is constituted by a monocrystalline magnetic metallic multilayer formed of a stack of layers of a magnetic material separated by layers of a non-magnetic material, the multilayer being constructed in such a way that the layers of magnetic material have antiferromagnetic type coupling and that of the transition between the antiparallel aligned state and the parallel aligned state occurs in a very short interval of the magnetic field.
    Type: Grant
    Filed: June 21, 1990
    Date of Patent: July 28, 1992
    Assignee: Thomson-CSF
    Inventors: Alain Friedrich, Gerard Creuzet