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US 7,744,702 B2Granted
Soft magnetic alloy powder, compact, and inductance element
AssigneeTDK Corporation
InventorsHiroshi Tomita, Hideharu Moro, Kesaharu Takatoh, Koyu Enda
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AssigneeTDK Corporation
InventorsHiroshi Tomita, Hideharu Moro, Kesaharu Takatoh, Koyu Enda
Estimating the term…
A soft magnetic alloy powder containing Fe—Ni-based crystal particles is provided as one capable of adequately reducing core loss of a powder magnetic core and achieving satisfactory magnetic characteristics at an effective operating temperature of an element. The present invention provides a soft magnetic alloy powder containing Fe—Ni-based crystal particles containing 45 to 55 mass % Fe and 45 to 55 mass % Ni, relative to a total mass of Fe and Ni, and containing 1 to 12 mass % Co and 1.2 to 6.5 mass % Si, relative to a total mass of Fe, Ni, Co, and Si.
A soft magnetic alloy powder comprising Fe—Ni-based particles containing 45 to 55 mass % Fe and 45 to 55 mass % Ni, relative to a total mass of Fe and Ni, and
A compact comprising Fe—Ni-based particles a part or whole of a surface of which is coated with an insulator, wherein said Fe—Ni-based particles contain 45 to 55 mass % Fe and 45 to 55 mass % Ni, relative to a total mass of Fe and Ni, and contain 1 to 12 mass % Co and 1.2 to 6.5 mass % Si, relative to a total mass of Fe, Ni, Co, and Si.
An inductance element comprising a powder magnetic core comprised of a compact,
An inductance element comprising a powder magnetic core comprised of a compact, and a coil buried in the powder magnetic core,
Dependencies are inferred from the claim text.