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:
Oct. 31, 2017
Filed:
Jul. 23, 2013
Nippon Light Metal Company, Ltd., Shinagawa-ku, JP;
Toyo Aluminium Kabushiki Kaisha, Osaka-shi, JP;
Masahiko Katano, Shizuoka, JP;
Yuya Yoshida, Shizuoka, JP;
Yoshihiro Taguchi, Shizuoka, JP;
Asami Shirai, Shizuoka, JP;
Yuta Shimizu, Shizuoka, JP;
Toshifumi Taira, Osaka, JP;
Masashi Mehata, Osaka, JP;
NIPPON LIGHT METAL COMPANY, LTD., Tokyo, JP;
Abstract
A porous aluminum electrode has a porous layer formed by sintering aluminum powder on the surface of an aluminum core. The porous aluminum electrode, when subjected to a formation to a voltage of 200V or more, is boiled and then subjected to a first forming process in which formation is performed in an aqueous solution of ammonium adipate at a temperature of 80° C. or below and a second forming process in which formation is performed in a boric acid aqueous solution. When heat depolarization is first carried out, washing with water is performed for five minutes or more before heat depolarization; therefore, the porous layer is not destroyed.