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:
Jan. 09, 2018
Filed:
Nov. 07, 2013
Nec Corporation, Tokyo, JP;
Shuhei Yoshida, Tokyo, JP;
Masahiro Tanomura, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
An electric power transmission device characterized in that the electric power transmission device includes a power transmitting unit which wirelessly transmits an electric power and a power receiving unit which receives the electric power, the power transmitting unit and the power receiving unit include a coil for electric power transmission and an inclusion unit made of a dielectric material covering the coil for electric power transmission, at least one of the power transmitting unit and the power receiving unit includes an impedance adjustment unit which varies the impedance thereof, and the electric power is transmitted at a resonance frequency determined by an impedance of the power transmitting unit, an impedance of the power receiving unit, and an impedance of the conducting medium.