FE-BASED SOFT MAGNETIC ALLOY, MANUFACTURING METHOD THEREFOR, AND MAGNETIC PARTS USING FE-BASED SOFT MAGNETIC ALLOY

WIPO Patent Application WO/2017/119787

A1

An Fe-based soft magnetic alloy is provided. According to one embodiment of the present invention, the Fe-based soft magnetic alloy is represented by empirical formula FeaBbCcCud, and in the empirical formula, a, b, c and d are at% (atomic percent) of the corresponding element and are respectively 78.5≤a≤86, 13.5≤b+c≤21 and 0.5≤d≤1.5. Therefore, the alloy has a high saturated magnetic flux density, excellent high frequency characteristics and low coercivity, and thus greatly facilitates the development of use as high performance/high efficiency small/lightweight parts. In addition, since manufacturing costs are very low and the components contained in an alloy are easily controlled in an alloy manufacturing process, thereby facilitating manufacture of the alloy so as to enable mass production, the present invention can be widely applied as magnetic parts of electric and electronic devices such as a high power laser, a high frequency power supply, a high-speed pulse generator, an SMPS, a high-pass filter, a low-loss high frequency transformer, a fast switch and wireless charging.

KIM JONG RYOUL (KR)
KANG MIN (KR)
KIM WOO CHUL (KR)
OH HAN HO (KR)
SONG YONG-SUL (KR)

PCT/KR2017/000231

July 13, 2017

January 06, 2017

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AMOGREENTECH CO LTD (KR)
INDUSTRY-UNIV COOP FOUND HANYANG UNIV ERICA CAMPUS (KR)

C22C38/16; C21D6/00; C22C19/00; C22C38/02; C22C38/10; H01F3/08; H01F17/04; H01Q1/52; H05K9/00

JP2011149045A	2011-08-04
KR20150128031A	2015-11-18
JP2001226753A	2001-08-21
JP2008231533A	2008-10-02
JP2002030398A	2002-01-31

See also references of EP 3401416A4

ERUUM & LEEON INTELLECTUAL PROPERTY LAW FIRM (KR)

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