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:
Sep. 22, 2009
Filed:
Mar. 24, 2006
Tatsuya Miwa, Osaka, JP;
Atsumasa Kubota, Osaka, JP;
Naoki Shimizu, Osaka, JP;
Masaki Ikeda, Osaka, JP;
Tatsuya Miwa, Osaka, JP;
Atsumasa Kubota, Osaka, JP;
Naoki Shimizu, Osaka, JP;
Masaki Ikeda, Osaka, JP;
Matsushita Electric Works, Ltd., Osaka, JP;
Abstract
A charging device includes a charging unit; a detection unit for detecting a temperature and a temperature increasing rate of a rechargeable battery; a controller for controlling the charging unit to supply a charging current to the rechargeable battery; and a compensating unit for setting a value of the first threshold to be greater if the temperature of the rechargeable battery at the time of mounting the rechargeable battery on the charging device is equal to or smaller than a second threshold and smaller if otherwise. The charging unit stops supplying the charging current to the rechargeable battery if the temperature increasing rate is equal to or greater than a first threshold.