Metal powder core comprising copper powder, coil component, and fabrication method for metal powder core
US9704627B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2013 |
| Grant date | Jul 11, 2017 |
| Priority date | — |
| Expiry date | Jun 10, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F41/0246
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a metal powder core constructed from soft magnetic material powder and a coil component employing this, a configuration suitable for reduction of a core loss is provided. The metal powder core constructed from soft magnetic material powder is characterized in that Cu is dispersed among the soft magnetic material powder. It is characterized in that, preferably, the soft magnetic material powder is pulverized powder of soft magnetic alloy ribbon and that Cu is dispersed among the pulverized powder of soft magnetic alloy ribbon. Further, it is characterized in that, preferably, the soft magnetic alloy ribbon is a Fe-based nano crystal alloy ribbon or a Fe-based alloy ribbon showing a Fe-based nano crystalline structure and that the pulverized powder has a nano crystalline structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.