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.

Date of Patent:
Mar. 15, 2016

Filed:

Feb. 15, 2012
Applicants:

Tatsuji Aoyama, Kyoto, JP;

Yuuki Murata, Yamaguchi, JP;

Hiroyuki Matsuura, Shiga, JP;

Hidehiro Sasaki, Toyama, JP;

Kazuyo Saito, Osaka, JP;

Yukiya Shimoyama, Yamaguchi, JP;

Jyunya Kushizaki, Yamaguchi, JP;

Inventors:

Tatsuji Aoyama, Kyoto, JP;

Yuuki Murata, Yamaguchi, JP;

Hiroyuki Matsuura, Shiga, JP;

Hidehiro Sasaki, Toyama, JP;

Kazuyo Saito, Osaka, JP;

Yukiya Shimoyama, Yamaguchi, JP;

Jyunya Kushizaki, Yamaguchi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G 4/228 (2006.01); H01G 9/10 (2006.01); H01G 9/04 (2006.01); H01G 9/00 (2006.01); H01G 9/008 (2006.01); H01G 9/15 (2006.01);
U.S. Cl.
CPC ...
H01G 9/0003 (2013.01); H01G 9/008 (2013.01); H01G 9/0029 (2013.01); H01G 9/04 (2013.01); H01G 9/15 (2013.01); Y10T 29/417 (2015.01);
Abstract

A capacitor element includes an anode foil, the first oxide film on a surface of the anode foil, a solid electrolyte layer formed using π-conjugated conductive polymer dispersing material on the first oxide film, and a cathode foil on the solid electrolyte layer. The cathode foil faces the first oxide film across the solid electrolyte layer. An electrolytic capacitor includes the capacitor element, an anode terminal connected to the anode foil, and a second oxide film on a surface of the anode terminal. The second oxide film provided on the anode terminal has higher water repellency than the first oxide film provided on the anode foil. This electrolytic capacitor can reduce a leakage current.


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