Magnetic film having wireless charging radiator condition, method of manufacturing the same, and wireless charging device using the same
US9697945B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Apr 30, 2013 |
| Grant date | Jul 4, 2017 |
| Priority date | — |
| Expiry date | Jan 23, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/37
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Since the magnetic film of the present invention has a much thinner thickness compared to a corresponding conventional magnetic layer and radiator coil material assembly and has no adhesive layer or air layer between the magnetic layer and the radiator, permeability required at the time of charging can be improved, a loss rate can be reduced and high charging efficiency can be obtained, Furthermore, since a band width and a gain rate can be improved, the magnetic film can be very usefully applied to wireless charging products which pursue slimming in design.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.