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:
Feb. 19, 2008
Filed:
May. 31, 2005
Masami Kawazu, Kanuma, JP;
Hisaya Tamura, Kanuma, JP;
Yuji Furuuchi, Kanuma, JP;
Masahiro Matsuyoshi, Kanuma, JP;
Kazutaka Furuta, Kanuma, JP;
Masami Kawazu, Kanuma, JP;
Hisaya Tamura, Kanuma, JP;
Yuji Furuuchi, Kanuma, JP;
Masahiro Matsuyoshi, Kanuma, JP;
Kazutaka Furuta, Kanuma, JP;
Sony Chemical & Information Device Corporation, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A secondary battery deviceincluding multiple protective circuits U-Uconnected in parallel and each having two fuses f, fconnected in series, wherein a terminal tof each heater h is connected to a switch elementvia rectifier element D-D. Even if a potential difference is generated between terminals t, no residual current flows because any one of the rectifier elements D-Dis reverse-biased.