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:
Jan. 05, 2010
Filed:
Nov. 24, 2005
Hironori Yukisada, Osaka, JP;
Takahito Takahashi, Osaka, JP;
Masao Nakamura, Osaka, JP;
Kazutoshi Okubo, Nara, JP;
Masaya Nakata, Osaka, JP;
Hironori Yukisada, Osaka, JP;
Takahito Takahashi, Osaka, JP;
Masao Nakamura, Osaka, JP;
Kazutoshi Okubo, Nara, JP;
Masaya Nakata, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
In a method for checking for leakage from tubular batteries, when tubular batteries are fed with their respective axial centers aligned in parallel to each other to pass through a leakage check mechanism, a sealed end face of the tubular batteries is irradiated with an X-ray. In accordance with the result of analysis on whether the incident fluorescent X-ray entering a detector contains a fluorescent X-ray associated with an electrolyte component, it is determined whether the tubular batteries have leaked. A length of a detection window of the detector in a direction of feed of the tubular batteries is set to be less than a spacing between the tubular batteries. A length of the detection window oriented orthogonal to the direction of feed is set to be greater than an outer size of the cross-sectional shape of the tubular batteries oriented orthogonal to their axial center.