Patents Assigned to Ferronics, Incorporated
  • Stress stabilized ferrimagnetic material and method of manufacture
    Patent number: 7297291
    Abstract: A stress stabilized ferrimagnetic material has a retained stress to provide enhanced initial permeability stability over a range of operating temperatures, such as from ?40° C. to 85° C., as well as pressures. Stress is introduced into the ferrimagnetic material, wherein subsequent processing relieves only a portion of the induced stress, and preferably less than 50% of the induced stress.
    Type: Grant
    Filed: August 11, 2004
    Date of Patent: November 20, 2007
    Assignee: Ferronics, Incorporated
    Inventor: Weilong Cai