Patents by Inventor Cornelis M. Schep

Cornelis M. Schep 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).

  • Magneto-resistive magnetic field sensor with a constricted region
    Patent number: 5936402
    Abstract: Two magnetic layers are mutually interconnected by a constricted region also made of a magnetic material. The layers may be separated by an intermediate non-metallic layer having a hole filed with magnetic material to from the constricted region. Alternatively, the layers and constricted region may be substantially co-planar. The constricted region minimum cross-section dimension preferably is less than one micron, and ideally of the order of 100 nm, thus being much smaller than the diameter of a magnetic domain. A high magneto-resistance ratio is obtained, and electrical and magnetic properties of the sensor can be adjusted largely independently.
    Type: Grant
    Filed: June 11, 1997
    Date of Patent: August 10, 1999
    Assignee: U.S. Philips Corporation
    Inventors: Cornelis M. Schep, Martinus A.M. Gijs