Patents by Inventor Antonius E. T. Kuiper

Antonius E. T. Kuiper 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).

  • Robust giant magnetoresistive effect type multilayer sensor
    Patent number: 6501271
    Abstract: A robust Giant Magneto Resistive effect type multilayer sensor comprising a free and a pinned ferromagnetic layer, which can withstand high temperatures and strong magnetic fields as required in automotive applications. The GMR multi-layer has an asymmetric magneto-resistive curve and enables sensors with complementary output signals so that a Wheatstone bridge is possible. The improvement is obtained by a combination of measures including the use of a combination of an Artificial Anti Ferromagnet as the pinned layer and an IrMn exchange-biasing layer, the latter preferably arranged at the bottom of the layer stack on top of a buffer layer.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: December 31, 2002
    Assignee: Koninkiljke Philips Electronics N.V.
    Inventors: Kars-Michiel H. Lenssen, Antonius E. T. Kuiper, Freddy Roozeboom