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:
Aug. 09, 2016
Filed:
Mar. 29, 2013
Applicant:
Tdk Corporation, Tokyo, JP;
Inventor:
Yoshihiro Saitoh, Tokyo, JP;
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 38/14 (2006.01); H02J 5/00 (2016.01);
U.S. Cl.
CPC ...
H01F 38/14 (2013.01); H02J 5/005 (2013.01);
Abstract
To improve power transmission efficiency in wireless power feeding by using a magnetic body. A wireless power transmission systemfeeds power by wireless from a feeding coil Lto a receiving coil Lbased on a magnetic-field resonance phenomenon between the feeding coil Land receiving coil L. A transmission control circuitsupplies AC power to the feeding coil Lat a drive frequency so as to make the feeding coil Lfeed the AC power to the receiving coil L. A magnetic body F is disposed between the feeding coil Land receiving coil L. The magnetic body F is disposed in a space between coil surfaces of the feeding coil Land receiving coil L