发明名称 |
Inductance element and method for manufacturing the same |
摘要 |
An inductance element is not interfered by peripheral circuits when mounted on a wiring board by forming a closed magnetic path. The inductance element has a small reduction of an inductance value when a direct current is superimposed, and thus has excellent direct current superimposition characteristics. The temperature coefficient of the magnetic permeability of a ferrite sintered body which constitutes a magnetic core can be positive. The temperature coefficient of the magnetic permeability of a soft magnetic resin provided as an external covering to cover a coil and to fill a space between flange sections of the magnetic core is permitted to be −30 ppm/° C. or less. |
申请公布号 |
US8111124(B2) |
申请公布日期 |
2012.02.07 |
申请号 |
US20100752746 |
申请日期 |
2010.04.01 |
申请人 |
HAGIYA AKIO;MURATA MANUFACTURING CO., LTD. |
发明人 |
HAGIYA AKIO |
分类号 |
H01F27/02;H01F7/06;H01F27/29 |
主分类号 |
H01F27/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|