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. 29, 2020
Filed:
May. 06, 2019
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Yasuhiro Tsuda, Osaka, JP;
Abstract
An electrolytic capacitor includes a capacitor element and an electrolyte solution. The capacitor element includes an anode foil, a cathode foil opposite to the anode foil, and a conductive polymer layer disposed between the anode foil and the cathode foil. A dielectric layer is formed on the anode foil. An inorganic layer is formed on the cathode foil. The conductive polymer layer includes a conductive polymer. The inorganic layer has a surface having projections and recesses. The projections form a region where the inorganic layer is in contact with the conductive polymer layer and the recesses form a region where the inorganic layer is not in contact with the conductive polymer layer. A proportion of water in the electrolyte solution ranges from 0.1% by mass to 6.0% by mass, inclusive.