Magnetically shielded assembly
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United States of America Patent
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-
Mar 30, 2004
Issued Date -
N/A
app pub date -
Nov 25, 2002
filing date -
Jan 22, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A shielded assembly containing a substrate and a shield. The shield contains both nanomagnetic material and a material with an electrical resistivity of from about 1 microohm-centimeter to about 1.times.10.sup.25 microohm centimeters. The 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 5000 Oersteds, a relative magnctic permeability of from about 1 to about 500,000, and an average particle size of less than about 100 nanometers.
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