Patents by Inventor Ling George Chow

Ling George Chow 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 domain bias field assembly
    Patent number: 4068219
    Abstract: An improved bias field assembly for reducing power losses in a magnetic domain memory device. A preferred embodiment employs rectangular permanent magnets positioned above and below a drive coil/substrates assembly. Ferrite shields of the same general size as the permanent magnets are interposed between the magnets and the drive coil/substrates assembly. These shields provide a highly resistive, relatively impermeable path for induced eddy currents and flux to reduce the effective resistance of the drive coil during high frequency operation and to minimize hysteresis losses.
    Type: Grant
    Filed: February 18, 1975
    Date of Patent: January 10, 1978
    Assignee: Honeywell Information Systems, Inc.
    Inventor: Ling George Chow