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:
May. 04, 2021

Filed:

Aug. 03, 2018
Applicant:

Tokin Corporation, Sendai, JP;

Inventors:

Yasuhisa Sugawara, Sendai, JP;

Masami Ishijima, Sendai, JP;

Kenji Araki, Sendai, JP;

Assignee:

TOKIN CORPORATION, Sendai, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G 9/07 (2006.01); H01G 9/04 (2006.01); H01G 9/10 (2006.01); H01G 9/00 (2006.01); H01G 9/035 (2006.01);
U.S. Cl.
CPC ...
H01G 9/07 (2013.01); H01G 9/0032 (2013.01); H01G 9/035 (2013.01); H01G 9/04 (2013.01); H01G 9/10 (2013.01);
Abstract

An electrolytic capacitor according to an aspect of the present disclosure includes a valve metal, a dielectric oxide film layer formed on a surface of the valve metal, a surface treatment agent layer formed on the dielectric oxide film layer, and an electrolyte layer formed on the surface treatment agent layer. The electrolyte layer includes a conductive polymer layer and an ionic liquid. For example, the conductive polymer layer is formed so that the conductive polymer layer is in contact with the surface treatment agent layer, and at least some of voids present in an interface between the conductive polymer layer and the surface treatment agent layer are filled with the ionic liquid.


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