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:
Jun. 26, 2018
Filed:
Jun. 23, 2014
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Osamu Ohashi, Kanagawa, JP;
Tsuyoshi Nishio, Chiba, JP;
Noriaki Asaoka, Kanagawa, JP;
Masayoshi Koizumi, Kanagawa, JP;
Abstract
Power feed device () supplies power to storage battery () mounted on vehicle (), through power receiving unit () of vehicle (). Power supply unit () performs preliminary supply to power receiving unit () while sequentially changing a frequency, and performs main supply with power larger than in the preliminary supply. Power supply-side controller () acquires frequency characteristics associated with power supply coil (), and specifies a resonance frequency based on the acquired frequency characteristics. Power supply-side controller () determines whether or not to supply power to power reception coil () based on a frequency difference between resonance frequencies.