发明名称 MAGNETIC CORE AND INDUCTANCE COMPONENT USING THE SAME
摘要 PROBLEM TO BE SOLVED: To provide a magnetic core where an overlap characteristic is not deteriorated even if it is miniaturized by obtaining a bond magnet for inserting magnetic core gap, which stably shows coercive force of 1,200 kA/m or above even if magnet powder used as a raw material is made fine, and to provide an inductance component using the core. SOLUTION: A 2-17 type samarium cobalt magnet rare earth magnet whose average cell size in a detailed cell structure is 150 to 2,500Åis pulverized so that an average particle size becomes 2.0 to 50μm. Then, raw material powders used for the bond magnet are obtained. Since the average cell size is adjusted to 150 to 2,500Å, the magnetic characteristic, especially, coercive force is not deteriorated even if the average particle size of magnet powder at the time of pulverizing is set to be 2.0 to 50μm. The bond magnet can be thinned, and the magnetic core can be miniaturized by using the thin bond magnet. COPYRIGHT: (C)2005,JPO&NCIPI
申请公布号 JP2005175009(A) 申请公布日期 2005.06.30
申请号 JP20030409201 申请日期 2003.12.08
申请人 NEC TOKIN CORP 发明人 MATSUMOTO HIROYUKI;FUJIWARA TERUHIKO
分类号 B22F1/00;H01F27/24;(IPC1-7):H01F27/24 主分类号 B22F1/00
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