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:
Mar. 20, 2007
Filed:
Mar. 24, 2003
Tatsuya Hashimoto, Naga-gun, JP;
Kenji Kimura, Sennan-gun, JP;
Seiichi Uemoto, Izumi, JP;
Hironori Yukisada, Hirakata, JP;
Masatomo Nagatani, Naga-gun, JP;
Takabumi Fujii, Suita, JP;
Tatsuya Hashimoto, Naga-gun, JP;
Kenji Kimura, Sennan-gun, JP;
Seiichi Uemoto, Izumi, JP;
Hironori Yukisada, Hirakata, JP;
Masatomo Nagatani, Naga-gun, JP;
Takabumi Fujii, Suita, JP;
Matsushita Electrical Industrial Co., Ltd., Osaka, JP;
Abstract
In a battery having a structure that an electrode plate group, formed by winding a positive electrode plate and a negative electrode plate with a separator interposed therebetween, is housed in a battery case together with an electrolyte solution, the electrode plate group is rolled around a roll core, and both ends of the roll core are supported by the battery case.