Title:
A composite particle, a powder magnetic core, a magnetic element, and portable electronic equipment
Document Type and Number:
Japanese Patent JP6131577
Kind Code:
B2
Abstract:
A composite particle includes: a first particle composed of a soft magnetic metallic material; and second particles composed of a soft magnetic metallic material having a different composition from that of the first particle and adhered to the first particle so as to cover the first particle, wherein when the Vickers hardness of the first particle is represented by HV1 and the Vickers hardness of the second particle is represented by HV2, HV1 and HV2 satisfy the following relationships: 250≰HV1≰1200, 100≰HV2<250, and 100≰HV1−HV2, and when the projected area circle equivalent diameter of the first particle is represented by d1 and the projected area circle equivalent diameter of the second particle is represented by d2, d1 and d2 satisfy the following relationships: 30 μm≰d1≰100 μm and 2 μm≰d2≰20 μm.
Inventors:
Otsuka Isamu
Yu Maeda
Sato Fuyutsu
Yu Maeda
Sato Fuyutsu
Application Number:
JP2012254452A
Publication Date:
May 24, 2017
Filing Date:
November 20, 2012
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
H01F1/20; B22F1/00; B22F1/02; B22F3/00; C22C19/03; C22C38/00; C22C45/02; H01F1/24; H01F27/255
Domestic Patent References:
| JP2012138494A | ||||
| JP2005294458A | ||||
| JP2009164401A | ||||
| JP2008189981A |
Foreign References:
| WO2010084812A1 |
Attorney, Agent or Firm:
Tatsuya Masuda
Kazuo Asahi
Kazuo Asahi