| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a magnetic core that is superior in d.c. superposition characteristics, core loss characteristics and anti-oxidation. <P>SOLUTION: The magnetic core has at least one or more gaps in a magnetic path, and the gap is coated with a rare earth magnet powder which uses a metal wherein its height is 90% or less of the gap length, an intrinsic coercive force is 10kOe or higher, and the average particular size of the powder is 300-25μm at 300°C or higher of Tc, and a bonded magnet, where the powder filling rate of a molded body is 55-70% and a specific resistance is 1Ωcm or higher is inserted. <P>COPYRIGHT: (C)2004,JPO |
