发明名称 |
MAGNETIC COMPONENT, SOFT MAGNETIC METAL POWDER USED IN SAME, AND METHOD FOR PRODUCING SAME |
摘要 |
In a magnetic component, such as an inductor and an antenna, produced with a metal magnetic powder, a complex number component of magnetic permeability that is a loss in the GHz band was high. A magnetic component obtained by molding a soft magnetic metal powder can have a reduced loss factor in the GHz band. The soft magnetic metal powder is characterized by containing iron as a main ingredient, and having an average particle size of not larger than 300 nm, a coercive force (Hc) of 16 to 119 kA/m (200 to 1500 Oe), a saturation magnetization of not less than 90 Am 2 /kg, and a volume resistivity of not less than 1.0 × 10 1 ©·cm. The volume resistivity is determined by measuring, by a four probe method, a molded body formed by vertically pressurizing 1.0 g of the metal powder at 64 MPa (20 kN). |
申请公布号 |
EP2801424(B1) |
申请公布日期 |
2017.03.08 |
申请号 |
EP20130848104 |
申请日期 |
2013.03.13 |
申请人 |
DOWA Electronics Materials Co., Ltd. |
发明人 |
IKARI, Kazumasa;GOTOH, Masahiro;YOSHIDA, Takayuki |
分类号 |
H01F41/02;B22F1/00;H01F1/24;H01F1/33;H01Q17/00 |
主分类号 |
H01F41/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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