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:
Dec. 08, 2020
Filed:
Sep. 05, 2017
Panasonic Corporation, Osaka, JP;
Yoshio Koyanagi, Kanagawa, JP;
Kazuhiro Eguchi, Fukuoka, JP;
Souichi Kawata, Fukuoka, JP;
Futoshi Deguchi, Fukuoka, JP;
Katsuya Okamoto, Fukuoka, JP;
Ryosuke Hasaba, Kanagawa, JP;
Tamaki Ura, Nagasaki, JP;
PANASONIC CORPORATION, Osaka, JP;
Abstract
An electric power transmission device capable of efficiently performing contactless electric power transmission to an underwater vehicle in water is provided. The electric power transmission device, which is an electric power transmission device transmitting electric power to an electric power reception device including an electric power reception coil in water, includes one or more transmission coils including an electric power transmission coil which transmits electric power to an electric power reception coil via a magnetic field, an electric power transmission unit which transmits AC power to an electric power transmission coil, a capacitor which is connected to the transmission coil and forms a resonant circuit which resonates with the transmission coil, and a buoyant body connected to at least one of the transmission coils.