	US 12,080,456 B2
	Soft magnetic powder, dust core, magnetic element, electronic device, and vehicle
Toshiki Sano, Hachinohe (JP)
Assigned to SEIKO EPSON CORPORATION, (JP)
Filed by Seiko Epson Corporation, Tokyo (JP)
Filed on May 11, 2022, as Appl. No. 17/741,526.
Claims priority of application No. 2021-081264 (JP), filed on May 12, 2021.
Prior Publication US 2022/0375665 A1, Nov. 24, 2022
Int. Cl. H01F 1/153 (2006.01)

CPC H01F 1/153 (2013.01)

9 Claims

1. A soft magnetic powder comprising soft magnetic metal particles satisfying following formulas (A), (B), and (C),

S=k{6/(d·ρ)} (A)

1.0≤k≤4.0 (B)

1.0≤d≤10.0 (C)

wherein S [m²/g] indicates a specific surface area, d [μm] indicates an average particle diameter, and ρ [g/cm³] indicates a true specific gravity, and

wherein the true specific gravity ρ is 7.08 g/cm³or more and 7.62 g/cm³or less.