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:
Apr. 11, 2017
Filed:
Sep. 14, 2015
Applicant:
Sony Corporation, Tokyo, JP;
Inventor:
Shigeru Arisawa, Tokyo, JP;
Assignee:
SONY CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 5/00 (2016.01); F01K 25/00 (2006.01); H02K 1/00 (2006.01);
U.S. Cl.
CPC ...
H02J 5/005 (2013.01); F01K 25/00 (2013.01); H02K 1/00 (2013.01);
Abstract
A power receiving device including: a power receiving coil configured to receive power when a power feeding device supplies the power via a magnetic field; an alternating-current power supply configured to apply an alternating voltage to the power receiving coil; and a foreign matter detecting section configured to generate an amount of change in impedance of the power receiving coil from a current induced in the power receiving coil to which the alternating voltage is applied and the alternating voltage, and detect foreign matter between the power receiving coil and the power feeding device on a basis of the amount of change.