Patent ID: 6844492

Claim:
A magnetically shielded conductor assembly comprised of a conductor and a film of nanomagnetic material disposed above said conductor, wherein: (a) said conductor has a resistivity at 20 degrees Centigrade of from about 1 to about 2,000 micro ohm-centimeters and is comprised of a first surface exposed to electromagnetic radiation; (b) said film of nanomagnetic material has a thickness of from about 100 nanometers to about 10 micrometers and a magnetic shielding factor of at least about 0.5; and said film of nanomagnetic material is disposed above at least about 50 percent of said first surface exposed to electromagnetic radiation; (c) said nanomagnetic material has a mass density of at least about 0.01 grams per cubic centimeter, a saturation magnetization of from about 1 to about 36,000 Gauss, a coercive force of from about 0.01 to about 5,000 Oersteds, a relative magnetic permeability of from about 1 to about 500,000, and an average particle size of less than about 100 nanometers.