Title:
軟磁性材料および圧粉磁心
Document Type and Number:
Japanese Patent JP4613622
Kind Code:
B2
Abstract:
A soft magnetic material includes a plurality of composite magnetic particles (30), wherein each of the plurality of composite magnetic particles (30) includes a metal magnetic particle (10), an insulating coating (20) covering the surface of the metal magnetic particle (10), and a composite coating (22) covering the outside of the insulating coating (20). The composite coating (22) includes a heat-resistance-imparting protective coating (24) covering the surface of the insulating coating (20), and a flexible protective coating (26) covering the surface of the heat-resistance-imparting protective coating (24). Accordingly, a soft magnetic material and a dust core which have a satisfactory compactibility and in which the insulating coating satisfactorily functions, thereby sufficiently reducing core loss, can be obtained.
Inventors:
Toru Maeda
Kazuhiro Hirose
Haruhisa Toyota
Kazuhiro Hirose
Haruhisa Toyota
Application Number:
JP2005012565A
Publication Date:
January 19, 2011
Filing Date:
January 20, 2005
Export Citation:
Assignee:
Sumitomo Electric Industries, Ltd.
International Classes:
H01F1/26; B22F1/10; B22F1/102; B22F1/16; H01F27/255
Domestic Patent References:
| JP60013826A | ||||
| JP2003142310A | ||||
| JP6349617A | ||||
| JP2004259807A | ||||
| JP60041202A | ||||
| JP2003086410A | ||||
| JP7254522A | ||||
| JP2006005173A |
Attorney, Agent or Firm:
Kuro Fukami
Toshio Morita
Yoshihei Nakamura
Yutaka Horii
Hisato Noda
Masayuki Sakai
Toshio Morita
Yoshihei Nakamura
Yutaka Horii
Hisato Noda
Masayuki Sakai