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. 27, 2004
Filed:
Aug. 27, 2003
Applicant:
Inventors:
Toshiyuki Hata, Kyoto, JP;
Yoshinori Oe, Kyoto, JP;
Nario Niibo, Osaka, JP;
Makoto Uemura, Kyoto, JP;
Tsuyoshi Yoshino, Kyoto, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01G 9/00 ;
U.S. Cl.
CPC ...
H01G 9/00 ;
Abstract
The present invention aims to address a problem of contact failure likely to occur in the joint between an internal lead and an external terminal and to provide a reliable aluminum electrolytic capacitor. To this end, an aluminum electrolytic capacitor of the present invention is structured so that a through-hole provided through an internal lead has a diameter smaller than the outer diameter of an aluminum rivet and the peripheral edge of this through-hole is drawn to provide a cylindrical portion integral with the through-hole.