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:
Jun. 16, 2015
Filed:
Dec. 28, 2010
Applicant:
Takashi Urano, Tokyo, JP;
Inventor:
Takashi Urano, Tokyo, JP;
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 27/42 (2006.01); H01F 37/00 (2006.01); H01F 38/00 (2006.01); H01F 38/14 (2006.01); H02J 5/00 (2006.01); H02J 7/00 (2006.01); H04M 11/04 (2006.01); H02J 17/00 (2006.01);
U.S. Cl.
CPC ...
H01F 38/14 (2013.01); H02J 7/00 (2013.01); H04M 11/04 (2013.01); H02J 17/00 (2013.01); H02J 5/005 (2013.01);
Abstract
A wireless power feederfeeds power from a feeding coil Lto a receiving coil Lby wireless based on a magnetic field resonance phenomenon between the feeding coil Land receiving coil L. A power transmission control circuitsupplies AC current at a drive frequency fo to the feeding coil L. The feeding coil Loutputs AC power in substantially a non-resonant state with respect to circuit elements on the power feeding side. Then, power is supplied to a receiving coil circuitby a magnetic field resonance between the feeding coil Land receiving coil L