COMPOSITE MAGNETIC SHEET AND PROCESS FOR PRODUCING THE SAME
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United States of America Patent
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Issued Date -
Aug 6, 2009
app pub date -
Jan 25, 2007
filing date -
Feb 2, 2006
priority date (Note) -
Abandoned
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Abstract
Provided are composite magnetic sheet which has excellent magnetic properties while high strength and thickness reduction are realized and a method of producing the composite magnetic sheet. The composite magnetic sheet 1 includes at least a resin 20 and a metal magnetic powder 10. The metal magnetic powder 10 contains flat powder having a major axis and a minor axis, the flat powder having a diameter of the major axis in the range of not less than 5 .mu.m and not more than 80 .mu.m and having an aspect ratio defined by a dimension ratio between the major axis and the minor axis in the range of not less than 5 and not more than 20. In the composite magnetic sheet 1, the metal magnetic powder 10 is dispersed so that the major axis is aligned parallel along the surface of the composite magnetic sheet 1.
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