Stock material or miscellaneous articles – Composite – Of inorganic material
Patent
1997-03-14
2000-05-16
Leary, Louise N.
Stock material or miscellaneous articles
Composite
Of inorganic material
428694, 427127, 427128, 422 50, 422186, B32B 900, G11B 566, B05D 512
Patent
active
060635118
ABSTRACT:
A device and method of making the device for regulating electromagnetic radiations in a predetermined frequency range, which comprises a substrate and a coating mixture on a surface of the substrate. The coating mixture is provided by mixing together: (a) a plurality of flakes of a magnetic or ferrite material having substantial length and width dimensions relative to their thickness, the thickness of substantially all of the flakes being less than the skin depth of all frequencies in the predetermined frequency range, (b) at least one surfactant, (c)) a vaporizable electrically insulating material and (d) a solvent. The mixture is sprayed onto the surface of the substrate, either with or without a magnetic field at the surface, and the solvent is removed to retain the flakes on the substrate spaced from each other by the electrically insulating material and disposed substantially parallel to the portion of the plane of the surface thereunder. The substrate can be any one of at least an automobile, an aircraft, an electronic enclosure, a portion of a building, a tower causing electromagnetic interference or a location for placement of an antenna. The device is preferably an absorber for electromagnetic radiations, particularly for use on the surfaces of a mobile device such as an automobile, aircraft or personal electronic device. The flakes are any magnetic or ferrite material than can be provided in flake form in the thickness range required.
REFERENCES:
patent: 2418479 (1947-04-01), Pratt
patent: 2954552 (1960-09-01), Halpern et al.
patent: 3845499 (1974-10-01), Ballinger
patent: 4606848 (1986-08-01), Bond
patent: 5455116 (1995-10-01), Nagano et al.
Kesler Oren B.
Purinton Donald L.
Brady III Wade James
Donaldson Richard L.
Leary Louise N.
Texas Instruments Incorporated
Valetti Mark A.
LandOfFree
Low cost thin film magnetodielectric material does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Low cost thin film magnetodielectric material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low cost thin film magnetodielectric material will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-256995