Title:
圧粉磁心及びその製造方法
Document Type and Number:
Japanese Patent JP4927983
Kind Code:
B2
Abstract:
A powder magnetic core of the present invention is a powder magnetic core that includes an insulating layer containing a particulate metal oxide between metal powders, in which the insulating layer contains Ca, P, O, Si, and C as elements. According to the present invention, it is possible to provide a powder magnetic core in which securing of a constant permeability characteristic under a high magnetic field and decrease in core loss are compatible with each other, and a method for producing the powder magnetic core.
Inventors:
Takashi Inagaki
Shitayama Yudai
Chio Ishihara
Maruyama Koushi
Shitayama Yudai
Chio Ishihara
Maruyama Koushi
Application Number:
JP2010250238A
Publication Date:
May 09, 2012
Filing Date:
November 08, 2010
Export Citation:
Assignee:
Hitachi Chemical Co., Ltd.
Hitachi Powdered Metals Co., Ltd.
Hitachi Powdered Metals Co., Ltd.
International Classes:
H01F1/24; B22F1/102; B22F1/105; B22F3/00; B22F3/24; H01F1/33; H01F27/255; H01F41/02; C22C38/00
Domestic Patent References:
| JP2009070914A | ||||
| JP2008063652A | ||||
| JP2006024869A | ||||
| JP2009283774A | ||||
| JP2011127201A |
Foreign References:
| WO2009075173A1 | ||||
| WO2009116938A1 |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshinori Shimizu
Hiroyuki Hirano
Yoshinori Shimizu
Hiroyuki Hirano