Patent · US Active

Wireless energy transfer using magnetic materials to shape field and reduce loss

US8324759B2 · kind B2 · utility

242Cited by

119References

21Claims

0Family size

Assignee

WiTricity Corporation · US

Inventors

Aristeidis Karalis · Boston, US
Andre B. Kurs · Sharon, US
Andrew J. Campanella · Waltham, US
Konrad J. Kulikowski · North Andover, US
Katherine L. Hall · Westford, US
Marin Soljacic · Belmont, US
Morris P. Kesler · Bedford, US

Key dates

Filing date	Dec 28, 2009
Grant date	Dec 4, 2012
Priority date	—
Expiry date	Sep 30, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH02J50/90
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

In embodiments of the present invention improved capabilities are described for a method and system comprising a source resonator optionally coupled to an energy source and a second resonator located a distance from the source resonator, where the source resonator and the second resonator are coupled to provide near-field wireless energy transfer among the source resonator and the second resonator and where the field of at least one of the source resonator and the second resonator is shaped using a magnetic material to avoid a loss-inducing object.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.