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:
Sep. 12, 2023
Filed:
Jun. 07, 2019
Applicant:
Nippon Chemi-con Corporation, Tokyo, JP;
Inventors:
Kazuya Koseki, Kanagawa, JP;
Kazuma Okura, Kanagawa, JP;
Kazuhiro Nagahara, Tokyo, JP;
Kenji Machida, Ibaraki, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G 9/042 (2006.01); H01G 9/055 (2006.01);
U.S. Cl.
CPC ...
H01G 9/0425 (2013.01); H01G 9/042 (2013.01); H01G 9/055 (2013.01);
Abstract
Provided is an electrode body that exhibits a good cathode side capacitance, and an electrolytic capacitor provided with this electrode body. The electrode body used for a cathode of the electrolytic capacitor has a cathode foil and a carbon layer. The cathode foil is made of a valve acting metal, and an enlarged surface layer is formed on the surface thereof. The carbon layer is formed on the enlarged surface layer. The interface between the enlarged surface layer and the carbon layer has an uneven shape.