Weilong Cai Phones & Addresses
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4 Mares Ln, Gardiner, NY 12525 (585) 223-8988
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12 Dickinson Xing, Fairport, NY 14450
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Rochester, NY
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Penfield, NY
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La Jolla, CA
Publications
Us Patents
Stress Stabilized Ferrimagnetic Material And Method Of Manufacture
View pageUS Patent:
7297291, Nov 20, 2007
Filed:
Aug 11, 2004
Appl. No.:
10/916034
Inventors:
Weilong Cai - Rochester NY, US
Assignee:
Ferronics, Incorporated - Fairport NY
International Classification:
C04B 35/26
C04B 35/38
C04B 35/64
C04B 35/38
C04B 35/64
US Classification:
252 6262, 264611, 264232, 264233, 264340, 264341
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.
Ferrimagnetic Materials With Temperature Stability And Method Of Manufacturing
View pageUS Patent:
60568909, May 2, 2000
Filed:
Apr 23, 1998
Appl. No.:
9/065890
Inventors:
Weilong Cai - Rochester NY
Thomas F. Pomponio - Rochester NY
Thomas F. Pomponio - Rochester NY
Assignee:
Ferronics Incorporated
International Classification:
C04B 3526
C04B 3538
C04B 3564
C04B 3538
C04B 3564
US Classification:
252 6256
Abstract:
A ferrite having a substantially continuous range of grain sizes in a substantially uniform distribution throughout the range of grain size, wherein no single grain size represents more than approximately 10% of the total grains. A method of forming a ferrite is disclosed wherein a first composition which yields a first grain size range upon sintering is combined with a second composition which yields a second different grain size range upon sintering to form a composite, and the composite is sintered to form the ferrite which exhibits a relatively temperature stable behavior within an extended temperature range.