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. 29, 2011
Filed:
Nov. 24, 2005
Masatoshi Tasei, Kyoto, JP;
Nario Niibo, Osaka, JP;
Masashige Ashizaki, Oaska, JP;
Yukio Nishioka, Kyoto, JP;
Hirofumi Iwashima, Kyoto, JP;
Koichi Morikawa, Kyoto, JP;
Masatoshi Tasei, Kyoto, JP;
Nario Niibo, Osaka, JP;
Masashige Ashizaki, Oaska, JP;
Yukio Nishioka, Kyoto, JP;
Hirofumi Iwashima, Kyoto, JP;
Koichi Morikawa, Kyoto, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A coin-type electrochemical element enables the external lead terminal portions to be accurately and reliably attached to a first lid portion and to a second lid portion of the coin-type electrochemical element, and a method of its production. A coin-type electric double layer capacitor includes a first lid portion and a second lid portion. External lead terminal portions, each having a nearly triangular shape, are separately connected to the outer surfaces of the lid portions. Upon providing the external lead terminal portions having the triangular shape, a welded portion is allowed to have an increased area enabling the coin-type electrochemical element of even a small size to be accurately and reliably welded and making it possible to provide the coin-type electrochemical element having excellent reliability.