Ferrite and inductor including the same
US10236104B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 2014 |
| Grant date | Mar 19, 2019 |
| Priority date | — |
| Expiry date | Apr 29, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/85
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An inductor is provided including a multilayer body in which a plurality of magnetic layers containing a ferrite are laminated. A coil part including a plurality of conductive patterns is disposed in the multilayer body. External electrodes are electrically connected to the coil part. The ferrite may contain iron (Fe), manganese (Mn), nickel (Ni), zinc (Zn), and vanadium (V), and the ferrite may contain 40 to 55 mol % of iron (Fe) calculated as iron oxide (Fe2O3), 5 to 20 mol % of nickel (Ni) calculated as nickel oxide (NiO), 15 to 25 mol % of zinc (Zn) calculated as zinc oxide (ZnO), 15 to 30 mol % of manganese (Mn) calculated as manganese oxide (MnO), and 1 to 4 mol % of vanadium (V) calculated as vanadium oxide (V2O5).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.