Title:
SILICA-BASED INSULATOR-COATED SOFT MAGNETIC POWDER AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2019/069923
Kind Code:
A1
Abstract:
This silica-based insulator-coated soft magnetic powder is an Fe-based soft magnetic powder the surface of which is coated with a silica-based insulating film, wherein the silica-based insulating film contains an Fe oxide and a Si oxide, and the Fe oxide and the Si oxide satisfy the relationship O(-Fe) / O(-Si) (the ratio of the quantity of O in the Fe oxide relative to the quantity of O in the Si oxide in the silica-based insulating film) = 0.05-1.0 (at% ratio).
Inventors:
IKEDA HIROAKI (JP)
IGARASHI KAZUNORI (JP)
IGARASHI KAZUNORI (JP)
Application Number:
PCT/JP2018/036879
Publication Date:
April 11, 2019
Filing Date:
October 02, 2018
Export Citation:
Assignee:
MITSUBISHI MATERIALS CORP (JP)
DIAMET CORP (JP)
DIAMET CORP (JP)
International Classes:
B22F1/16; C01B33/12; C01B33/152; H01F1/20
Foreign References:
| JP2009041101A | 2009-02-26 | |||
| JP2007194273A | 2007-08-02 | |||
| JP2011233827A | 2011-11-17 | |||
| JP2013546162A | 2013-12-26 | |||
| JP2017194545A | 2017-10-26 | |||
| JP2011233827A | 2011-11-17 | |||
| JP2013149659A | 2013-08-01 |
Other References:
See also references of EP 3693101A4
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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