Patents by Inventor Gerardus Henricus Johannes Somers

Gerardus Henricus Johannes Somers 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).

  • Magnetic systems with irreversible characteristics and a method of manufacturing and repairing and operating such systems
    Patent number: 6501678
    Abstract: A novel magnetic data storage system and a sensing system of magnetic characteristics are disclosed; the systems have a magnetization direction that is irreversible in an external magnetic field. A method of manufacturing, a method of resetting or changing or repairing and a method of operating such systems are also disclosed. The systems can include a set of magnetic devices in a balancing configuration; essentially each of said devices comprises a structure of layers including at least a first ferromagnetic layer and a second ferromagnetic layer with at least a separation layer of a non-magnetic material there between, said structure having at least a magneto resistance effect. The magnetization direction of the first ferromagnetic layer of at least one of said devices is irreversible in an external magnetic field higher than about 35 kA/m.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: December 31, 2002
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Kars-Michiel Hubert Lenssen, Derk Jan Adelerhof, Gerardus Henricus Johannes Somers, Joannes Baptist Adrianus Dionisius Van Zon, Antonius Emilius Theodorus Kuiper