发明名称 COIL COMPONENT AND ITS MANUFACTURING METHOD
摘要 <P>PROBLEM TO BE SOLVED: To provide a coil component that is reduced in leaked magnetic flux and can be improved in the DC superimposing characteristics by applying a bias magnetic field with a simple structure, and to provide a method of manufacturing the coil component. <P>SOLUTION: A choke coil is constituted of a drum core 1 composed of a magnetic material and winding 3 arranged in the drum core 1. The periphery of the choke coil is molded with a mixture 2 of magnetic material powder and a resin. In addition, the admixture 2 is magnetically oriented by means of an external magnetic field, and the mixing ratio of the resin in the admixture 2 is adjusted to 10-40 wt% with respect to 100 wt% of the magnetic material powder. <P>COPYRIGHT: (C)2006,JPO&NCIPI
申请公布号 JP2006114536(A) 申请公布日期 2006.04.27
申请号 JP20040297339 申请日期 2004.10.12
申请人 NEC TOKIN CORP 发明人 NAMEZAWA AKIKO
分类号 H01F27/32;H01F1/06;H01F1/20;H01F1/26;H01F27/24;H01F27/255;H01F27/28;H01F41/12 主分类号 H01F27/32
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