Magnetic core and coil component using same
US-2016336104-A1 · Nov 17, 2016 · US
Metal powder core comprising copper powder, coil component, and fabrication method for metal powder core
US9704627B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9704627-B2 |
| Application number | US-201314372974-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 15, 2013 |
| Priority date | Jan 18, 2012 |
| Publication date | Jul 11, 2017 |
| Grant date | Jul 11, 2017 |
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Abstract
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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.
First claim
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The invention claimed is: 1. A metal powder core which includes Fe-based soft magnetic material powder and Cu powder and in which the Fe-based soft magnetic material powder and the Cu powder are bound by a binder, wherein the Fe-based soft magnetic material powder is flat-plate shaped pulverized powder, the Cu powder is dispersed between principal surfaces of the pulverized powder, and the content of the Cu powder is 0.1% to 10% relative to a total mass of the pulverized powde…
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- What does patent US9704627B2 cover?
- 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 powd…
- Who is the assignee on this patent?
- Hitachi Metals Ltd
- What technology area does this patent fall under?
- Primary CPC classification B22F1/08. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jul 11 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).