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. 04, 2005
Filed:
Jan. 08, 2004
Kazuya Kawahara, Uji, JP;
Mitsuo Tadokoro, Hirakata, JP;
Yoshiki Hashimoto, Uji, JP;
Toshiyuki Hata, Uji, JP;
Morihiro Fukuda, Yamaguchi, JP;
Tsuyoshi Yoshino, Kameoka, JP;
Kazuya Kawahara, Uji, JP;
Mitsuo Tadokoro, Hirakata, JP;
Yoshiki Hashimoto, Uji, JP;
Toshiyuki Hata, Uji, JP;
Morihiro Fukuda, Yamaguchi, JP;
Tsuyoshi Yoshino, Kameoka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
Disclosed is an aluminum electrolytic capacitor, wherein each of anode and cathode foils is joined to a corresponding portion of a leader line through at least two caulked joint sections formed at each of the opposite ends of the flat portion, and a plurality of pressure-welded joint sections formed between the respective caulked joint sections at the opposite ends. The chaulked joint sections formed at each of the opposite ends of the portion provide a high joint strength. Further, the pressure-welded joint sections formed between the respective caulked-join sections at the opposite ends of the portion allow an electrical connection between the foil and the leader line to be stably obtained at a low resistance. This joint structure can, therefore, be applied to small-size capacitors which have not been able to be obtained by using only caulked joint, to achieve an aluminum electrolytic capacitor having a sufficient joint strength and a highly reliable electrical connection.