Insulator-coated soft magnetic powder, powder magnetic core, magnetic element, electronic device, and vehicle
US11348712B2 · kind B2 · utility
0Cited by
0References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2018 |
| Grant date | May 31, 2022 |
| Priority date | — |
| Expiry date | Jan 21, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2017/048
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An insulator-coated soft magnetic powder includes a plurality of particles each including a core which contains a soft magnetic material, and an insulating layer which is provided on the surface of the core and contains a glass material including Bi2O3 as a main component. The content of an alkali metal in the insulating layer is 5 mol % or less. The glass material further contains at least one of ZnO and B2O3. The content of Bi2O3 in the glass material is 40 mol % or more and 80 mol % or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.