Title:
圧粉磁心、及び電磁部品
Document Type and Number:
Japanese Patent JP6788747
Kind Code:
B2
Abstract:
A powder magnetic core includes a compact including soft magnetic powder, and an insulating-resin coating that covers a portion of a surface of the compact. A ratio of an area of the insulating-resin coating to a surface area of the compact is lower than or equal to 85%, and a maximum depth of unevenness on a surface of the insulating-resin coating is smaller than or equal to 20 μm.
Inventors:
Tatsuya Saito
Asako Watanabe
Tomoyuki Ueno
Asako Watanabe
Tomoyuki Ueno
Application Number:
JP2019535075A
Publication Date:
November 25, 2020
Filing Date:
July 23, 2018
Export Citation:
Assignee:
Sumitomo Electric Industries, Ltd.
Sumitomo Electric Sintered Alloy Co., Ltd.
Sumitomo Electric Sintered Alloy Co., Ltd.
International Classes:
H01F27/255; H01F1/22; H01F3/08; H01F27/24; H02K1/02; H02K1/04
Domestic Patent References:
| JP2013143406A | ||||
| JP2016127042A | ||||
| JP2007215334A | ||||
| JP2003309015A | ||||
| JP2005295684A | ||||
| JP6327199A | ||||
| JP2007224412A | ||||
| JP11341751A | ||||
| JP2009044788A | ||||
| JP2004242443A |
Foreign References:
| WO2005107039A1 | ||||
| WO2012081737A1 |
Attorney, Agent or Firm:
Hiroshi Yamano
Hiroshi Sakamoto
Hiroshi Sakamoto