Ferrite sintered plate and ferrite sintered sheet
US9824802B2 · kind B2 · utility
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1References
15Claims
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Assignee
Inventors
Key dates
| Filing date | Oct 29, 2013 |
| Grant date | Nov 21, 2017 |
| Priority date | — |
| Expiry date | Oct 29, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/6025
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to an Ni—Zn—Cu—Co ferrite sintered plate having a composition comprising 45 to 50 mol % of Fe2O3, 10 to 25 mol % of NiO, 15 to 36 mol % of ZnO, 2 to 14 mol % of CuO and 0.1 to 3.5 mol % of CoO, all of the molar amounts being calculated in terms of the respective oxides, and a ferrite sintered sheet that is provided on a surface thereof with a groove and further with an adhesive layer and/or a protective layer. The ferrite sintered sheet is capable of exhibiting an increased μ′ value of a magnetic permeability while maintaining a small μ″ value of the magnetic permeability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.