Title:
圧粉磁心、及び電磁部品
Document Type and Number:
Japanese Patent JP7219253
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
渡▲辺▼ 麻子
Tomoyuki Ueno
渡▲辺▼ 麻子
Tomoyuki Ueno
Application Number:
JP2020181742A
Publication Date:
February 07, 2023
Filing Date:
October 29, 2020
Export Citation:
Assignee:
Sumitomo Electric Industries, Ltd.
Sumitomo Electric Sintered Alloy Co., Ltd.
Sumitomo Electric Sintered Alloy Co., Ltd.
International Classes:
H01F27/255; H01F3/08; H02K1/02; H02K1/04
Domestic Patent References:
| JP2013143406A | ||||
| JP2007215334A | ||||
| JP2003309015A | ||||
| JP2005295684A | ||||
| JP2014036156A |
Attorney, Agent or Firm:
Hiroshi Yamano
Niijima Hideaki
Niijima Hideaki
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