Patents by Inventor Johannes B. F. Aan de Stegge

Johannes B. F. Aan de Stegge 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 recording medium
    Patent number: 5695863
    Abstract: A magneto-optical recording medium comprising a substrate and a recording layer, the recording layer comprising a bilayer structure consisting of a first layer on which a magnetic second layer is deposited, the second layer demonstrating perpendicular magnetic anisotropy and a saturation remanence of at least 90%, whereby the magnetic material of the second layer comprises an oxide of iron, and the first layer comprises an oxidic material whose in-plane lattice parameter differs from that of the magnetic material, the growth of the second layer upon the first layer being at least locally epitaxial.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 9, 1997
    Assignee: U.S. Philips Corporation
    Inventors: Pascal J. H. Bloemen, Johannes B. F. Aan de Stegge, Pieter J. Van der Zaag, Ronald M. Wolf