Patents by Inventor Ronald Jongebreur

Ronald Jongebreur 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-optical device
    Patent number: 4650290
    Abstract: A magneto-optical device for varying the state of polarization of a reflected or transmitted light beam having a wavelength which lies in particular in the range between 0.6 and 0.9 microns. The device has a magneto-optically active layer formed from a platinum-manganese-antimony alloy, at least 80 atomic percent of which has the composition Pt.sub.1 Mn.sub.1 Sb.sub.1 and has a C1.sub.b crystal structure.
    Type: Grant
    Filed: January 17, 1985
    Date of Patent: March 17, 1987
    Assignee: U.S. Philips Corporation
    Inventors: Pieter G. van Engen, Kurt H. J. Buschow, Ronald Jongebreur