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:
Nov. 25, 2025
Filed:
Jun. 21, 2022
Applicant:
Nippon Chemi-con Corporation, Tokyo, JP;
Inventors:
Assignee:
NIPPON CHEMI-CON CORPORATION, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G 9/042 (2006.01); H01G 9/00 (2006.01); H01G 9/055 (2006.01); H01G 9/145 (2006.01);
U.S. Cl.
CPC ...
H01G 9/0425 (2013.01); H01G 9/0029 (2013.01); H01G 9/055 (2013.01); H01G 9/145 (2013.01);
Abstract
An electrolytic capacitor that can suppress a decrease over time of capacity, a cathode body included in the electrolytic capacitor, and a production method of the electrolytic capacitor are provided. The electrolytic capacitor includes an anode foil, a cathode body, and electrolytic solution. The anode foil is formed of valve metal and has dielectric oxide film formed on a surface of the foil. The cathode body includes cathode foil formed of valve metal and a carbon layer laminated on the cathode foil. An interfacial resistance between the cathode foil and the carbon layer is 1.8 mΩ·cmor less.