Composite magnetic body, and magnetic element and method of manufacturing the same
US6888435B2 · kind B2 · utility
36Cited by
9References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 11, 2004 |
| Grant date | May 3, 2005 |
| Priority date | — |
| Expiry date | May 11, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/32
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a composite magnetic body containing metallic magnetic powder and thermosetting resin and having a packing ratio of the metallic magnetic powder of 65 vol % to 90 vol % and an electrical resistivity of at least 104 Ω·cm. When a coil is embedded in this composite magnetic body, a miniature magnetic element can be obtained that has a high inductance value and is excellent in DC bias characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.