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:
Oct. 09, 2018
Filed:
Jul. 29, 2015
Furukawa Electric Co., Ltd., Tokyo, JP;
Masahiro Kusunoki, Tokyo, JP;
Mitsuru Masuda, Tokyo, JP;
FURUKAWA ELECTRIC CO., LTD., Tokyo, JP;
Abstract
[OBJECT] There is provided a wireless power transmission system capable of transmitting power efficiently even when it is rotated. [ORGANIZATION] A power transmission device has a first and a second electrode (a center electrodeand an annular electrode) each having a rotationally symmetrical shape with respect to a common center axis, a first and a second connection line (connection lines), and a first inductor to (inductor). A power reception device has a third and a fourth electrode (center electrodeand annular electrode) each having a rotationally symmetrical shape with respect to a common center axis, a third and a fourth connection line (connection lines), and a second inductor. The electrodes of the power transmission device and the power reception device are disposed to oppose each other across a distance of λ/2π or less as a near field, and a resonance frequency of a coupler constituted of the first and the second electrode and the first inductor and a resonance frequency of a coupler constituted of the third and the fourth electrode and the second inductor (inductor) are set to be substantially equal.