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US-9626038-B2 · Apr 18, 2017 · US
Composite ferrite composition and electronic device
US9305690B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9305690-B2 |
| Application number | US-201414266214-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 30, 2014 |
| Priority date | May 10, 2013 |
| Publication date | Apr 5, 2016 |
| Grant date | Apr 5, 2016 |
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Abstract
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A composite ferrite composition comprises a magnetic material and a non-magnetic material. A mixing ratio of said magnetic material and said non-magnetic material is 20 wt %:80 wt % to 80 wt %:20 wt %. Ni—Cu—Zn based ferrite is used as the magnetic material. Oxides of Zn, Cu, and Si are at least included in a main component of said non-magnetic material. Borosilicate glass is included in a subcomponent of said non-magnetic material.
First claim
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The invention claimed is: 1. A composite ferrite composition, comprising: a magnetic material and a non-magnetic material; wherein: a mixing ratio of said magnetic material and said non-magnetic material is 20 wt %:80 wt % to 80 wt %:20 wt %, said magnetic material is Ni—Cu—Zn based ferrite, at least oxides of Zn, Cu, and Si are included in a main component of said non-magnetic material, borosilicate glass is included in a subcomponent of said non-magnetic material, the main component of said non-magnetic material is expressed by a general formula “a(bZnO.cMgO.dCuO).SiO 2 ”, and a, b, c and d in the general formula satisfies the following: a=1.5 to 2.4, b=0.2 to 0.98, c=1.00−b−d, and d=0.02 to 0.15. 2. The composite ferrite composition as set forth in claim 1 , wherein said non-magnetic material includes 0.5 to 17.0 wt % of MO—SiO 2 —B 2 O 3 glass (MO denotes alkaline earth metal oxides) as a subcomponent. 3. An electronic device, comprising: a coil conductor and a ceramic layer laminated; wherein: said coil conductor includes Ag, and said ceramic layer is composed of the composite ferrite composition as set forth in claim 1 . 4. An electronic device, comprising: a coil conductor and a ceramic layer laminated; wherein: said coil conductor includes Ag, and said ceramic layer is composed of the composite ferrite composition as set forth in claim 2 . 5. A composite electronic device, comprising: a coil conductor and a ceramic layer laminated; wherein: said coil conductor includes Ag, and said ceramic layer is composed of the composite ferrite composition as set forth in claim 1 . 6. A composite electronic device, comprising: a coil conductor and a ceramic layer laminated; wherein: said coil conductor includes Ag, and said ceramic layer is composed of the composite ferrite composition as set forth in claim 2 .
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- What does patent US9305690B2 cover?
- A composite ferrite composition comprises a magnetic material and a non-magnetic material. A mixing ratio of said magnetic material and said non-magnetic material is 20 wt %:80 wt % to 80 wt %:20 wt %. Ni—Cu—Zn based ferrite is used as the magnetic material. Oxides of Zn, Cu, and Si are at least included in a main component of said non-magnetic material. Borosilicate glass is included in a subc…
- Who is the assignee on this patent?
- Tdk Corp
- What technology area does this patent fall under?
- Primary CPC classification H01F1/401. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 05 2016 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 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).