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:
Dec. 02, 2014
Filed:
Oct. 04, 2011
Nobuhiro Ota, Osaka, JP;
Akihisa Hosoe, Osaka, JP;
Masatoshi Majima, Osaka, JP;
Koji Nitta, Osaka, JP;
Tomoyuki Awazu, Itami, JP;
Kazuki Okuno, Osaka, JP;
Masahiro Kato, Itami, JP;
Shoichiro Sakai, Osaka, JP;
Shinji Inazawa, Osaka, JP;
Nobuhiro Ota, Osaka, JP;
Akihisa Hosoe, Osaka, JP;
Masatoshi Majima, Osaka, JP;
Koji Nitta, Osaka, JP;
Tomoyuki Awazu, Itami, JP;
Kazuki Okuno, Osaka, JP;
Masahiro Kato, Itami, JP;
Shoichiro Sakai, Osaka, JP;
Shinji Inazawa, Osaka, JP;
Sumitomo Electric Industries, Ltd., Osaka-shi, Osaka, JP;
Abstract
A capacitor has a positive electrode, a negative electrode, and a solid electrolyte layer arranged between the electrode layers. At least one of the electrode layers of this capacitor has an Al porous body, and an electrode body held in this Al porous body to polarize the electrolyte. The oxygen content in the surface of the Al porous body is 3.1% by mass or less. The matter that the oxygen content in the surface of the Al porous body is 3.1% by mass or less is equal to the matter that a high-resistance oxide film is hardly formed on the surface of the Al porous body. Thus, this Al porous body makes it possible to make the current collector area of the electrode layer large so that the capacitor can be improved in capacity.