OXIDE MAGNETIC MATERIAL AND SINTERED MAGNET
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United States of America Patent
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app pub date -
Jun 4, 2010
filing date -
Sep 10, 2004
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Abstract
.yMO, where R is at least one element selected from the group consisting of La, Nd and Pr and always includes La, M is at least one element selected from the group consisting of Co, Zn, Ni and Mn and always includes Co, and the mole fractions x, y and n satisfy 0.4≦x≦0.6, 0.2≦y≦0.35, 4≦n≦6, and 1.4≦x/y≦2.5. The oxide magnetic material includes a ferrite having a hexagonal M-type magnetoplumbite structure as a main phase.
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