Inductor devices – Core forms casing
Reexamination Certificate
2006-04-24
2008-11-11
Enad, Elvin G (Department: 2832)
Inductor devices
Core forms casing
Reexamination Certificate
active
07449984
ABSTRACT:
There are provided a magnetic element capable of enhancing magnetic permeability of a magnetic member, improving a direct current superposition characteristic, and improving production efficiency and a method of manufacturing the magnetic element. The magnetic element includes a coil (30) formed of a conductor having an insulating film, a first core member (20) constituted of insulative soft magnetic ferrite and covering the coil (30), and a second core member (50) having soft magnetic metal powder as material and surrounded by the first core member (20). Furthermore, the magnetic element includes a third core member (40) which has soft magnetic metal powder as material and a higher filling ratio of the soft magnetic metal powder than the second core member50and is surrounded by the first core member (20).
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Baisa Joselito
Chin Stephen
Enad Elvin G
Sumida Corporation
von Simson & Chin LLP
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