Compositions – Magnetic – Iron-oxygen compound containing
Reexamination Certificate
2006-03-10
2010-11-23
Koslow, C. Melissa (Department: 1793)
Compositions
Magnetic
Iron-oxygen compound containing
C252S062590
Reexamination Certificate
active
07837893
ABSTRACT:
A sintered ferrite magnet having an M-type ferrite structure and comprising Ca, an R element which is at least one rare earth element indispensably including La, Ba, Fe and Co as indispensable elements, which is represented by Ca1-x-yRxBayFe2n-zCoz, wherein (1-x-y), x, y, z and n are numbers representing the amounts of Ca, the R element, Ba and Co and a molar ratio, meeting 0.2≦x≦0.65, 0.001≦y≦0.2, 0.03≦z≦0.65, and 4≦n≦7.
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Family member of JP 2000-268344.
Iwasaki Hiroshi
Mochi Naoki
Takami Takashi
Hitachi Metals Ltd.
Koslow C. Melissa
Sughrue & Mion, PLLC
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