Patents by Inventor Franciscus Hermanus deLeeuw

Franciscus Hermanus deLeeuw 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).

  • Device operating with the displacement of magnetic domain wall
    Patent number: 3942165
    Abstract: A data processing device utilizing magnetizable media operating with the displacement of magnetic domain walls, in particular walls of "bubble" domains, which are propelled by fields which move walls with a speed which is as large as possible, and are operative only for a restricted time, preferably shorter than 20 nanoseconds.
    Type: Grant
    Filed: July 10, 1974
    Date of Patent: March 2, 1976
    Assignee: U.S. Philips Corporation
    Inventor: Franciscus Hermanus deLeeuw