The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 2015
Filed:
Oct. 06, 2011
Andrew J. Campanella, Somerville, MA (US);
Katherine L. Hall, Westford, MA (US);
Aristeidis Karalis, Boston, MA (US);
Morris P. Kesler, Bedford, MA (US);
Konrad Kulikowski, North Andover, MA (US);
Andre B. Kurs, Chestnut Hill, MA (US);
Qiang LI, Malden, MA (US);
Marin Soljacic, Belmont, MA (US);
Eric R. Giler, Boston, MA (US);
David Schatz, Needham, MA (US);
Andrew J. Campanella, Somerville, MA (US);
Katherine L. Hall, Westford, MA (US);
Aristeidis Karalis, Boston, MA (US);
Morris P. Kesler, Bedford, MA (US);
Konrad Kulikowski, North Andover, MA (US);
Andre B. Kurs, Chestnut Hill, MA (US);
Qiang Li, Malden, MA (US);
Marin Soljacic, Belmont, MA (US);
Eric R. Giler, Boston, MA (US);
David Schatz, Needham, MA (US);
WiTricity Corporation, Watertown, MA (US);
Abstract
A wireless charging pad includes a capacitively-loaded conducting loop source resonator, with a characteristic size, L1, connected to a switching amplifier and configured to generate an oscillating magnetic field, wherein the conducting loop comprises multiple turns circumscribing an area, the conducting loop does not extend into the center of the circumscribed area, the source resonator delivers useful power to at least one device resonator with a characteristic size, L2, and where L1 is larger than L2.