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.

Date of Patent:
Feb. 21, 2017

Filed:

May. 01, 2014
Applicant:

Ihi Corporation, Tokyo, JP;

Inventor:

Yuji Maekawa, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/02 (2016.01); B63G 8/00 (2006.01); H02J 5/00 (2016.01); B63G 8/08 (2006.01); G01N 33/18 (2006.01);
U.S. Cl.
CPC ...
H02J 7/025 (2013.01); B63G 8/001 (2013.01); B63G 8/08 (2013.01); G01N 33/1886 (2013.01); H02J 5/005 (2013.01); B63B 2211/02 (2013.01); B63G 2008/008 (2013.01);
Abstract

A power transmission system transmits power underwater between a power-transmitting device and a power-receiving device of which at least one is capable of moving freely underwater. In this power transmission system, the power-transmitting device and the power-receiving device are each provided with a resonance coil that performs the power transmission wirelessly underwater by means of magnetic field resonance. At least one of the power-transmitting device and the power-receiving device is provided with a balloon that internally houses the resonance coil of its own device.


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