Coil component using magnetic body and circuit board carrying same
US12308149B2 · kind B2 · utility
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1References
10Claims
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Key dates
| Filing date | Dec 22, 2023 |
| Grant date | May 20, 2025 |
| Priority date | — |
| Expiry date | Dec 22, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F41/0246
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A magnetic body is constituted by grains of a soft magnetic alloy bonded together via an oxide layer, wherein: the soft magnetic alloy is an alloy containing Si by 1 to 5.5 percent by mass, and Cr and/or Al by 0.2 to 4 percent by mass in total, as constituent elements, with Fe and unavoidable impurities accounting for the remainder, wherein a content of Si is more than a content of Cr and Al in total; and the oxide layer contains Si, as well as at least one of Fe, Cr, and Al, where, among Fe, Si, Cr, and Al, Si is contained in the largest quantity based on mass. The magnetic body can have high magnetic permeability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.