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:
Mar. 31, 2026
Filed:
Jan. 26, 2022
Nippon Chemi-con Corporation, Tokyo, JP;
Kazuhiro Nagahara, Tokyo, JP;
Tatsuru Hatae, Kanagawa, JP;
Kazuya Koseki, Kanagawa, JP;
Atsushi Yoshida, Fukushima, JP;
Makoto Tominaga, Fukushima, JP;
Riho Gumilar Maeda, Fukushima, JP;
Nippon Chemi-Con Corporation, Tokyo, JP;
Abstract
The present disclosure provides an electrolytic capacitor for middle or high voltage application of 160 V or more, which can suppress the total amount of gas generated inside the electrolytic capacitor. An electrolytic capacitor includes anode foil on which dielectric oxide film is formed, and a cathode body. The cathode body includes cathode foil formed of valve action metal and a carbon layer formed on the cathode foil. The anode foil and the cathode body have capacitance so that when capacitance X of the anode foil per unit area is 1, ratio of capacitance Y of the cathode body per the same unit area is equal to or more than 10.