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:
Jul. 07, 2009
Filed:
Aug. 31, 2004
Shinya Takagi, Tokyo, JP;
Toshio Matsushima, Sayama, JP;
Kazuo Tsukamoto, Tokyo, JP;
Takuya Sudo, Tokorozawa, JP;
Shinya Takagi, Tokyo, JP;
Toshio Matsushima, Sayama, JP;
Kazuo Tsukamoto, Tokyo, JP;
Takuya Sudo, Tokorozawa, JP;
NTT Facilities, Inc., Tokyo, JP;
Origin Electric Company, Limited, Tokyo, JP;
Abstract
A charging device including an assembled battery having plural secondary batteries serially connected, a charge power source unit which supplies charging current to both ends of said assembled battery having plural secondary batteries serially connected, and plural charge controllers which connect to both ends of each secondary battery among said plural secondary batteries; wherein said charge power source unit includes a charging current output unit which outputs charging current to said assembled battery, and a control unit which controls the current of said charging current output unit based on notification of the bypass current from said charge controllers; and wherein each of said plural charge controllers includes a current control unit which bypasses the current that flows to said secondary battery when the terminal voltage of said secondary battery has reached a preset voltage value, and a notification unit which notifies the control unit of said charge power source unit of said bypass current.