Patents by Inventor Ronald G. Wolfshagen

Ronald G. Wolfshagen 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).

  • Uniform rotating field network structure to efficiently package a magnetic bubble domain memory
    Patent number: 4106106
    Abstract: A unique and compact open coil rotating magnetic field network structure to efficiently package an array of bubble domain devices is disclosed. The field network has a configuration which effectively enables selected bubble domain devices from the array to be driven in a vertical magnetic field and in an independent and uniform horizontal rotating magnetic field. The field network is suitably adapted to minimize undesirable inductance effects, improve capabilities of heat dissipation, and facilitate repair or replacement of a bubble device.
    Type: Grant
    Filed: March 16, 1976
    Date of Patent: August 8, 1978
    Assignee: Rockwell International Corporation
    Inventors: Ronald G. Wolfshagen, John E. Ypma, Glen W. Murray, Thomas T. Chen