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:
Oct. 13, 2020
Filed:
Aug. 21, 2018
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Abstract
An electrolytic capacitor has an electrode foil that includes a metal foil containing a first metal, a first dielectric layer disposed on the metal foil, and a second dielectric layer disposed on the first dielectric layer. A method for manufacturing the electrolytic capacitor includes subjecting a roughening treatment to the metal foil and forming the second dielectric layer on a roughened surface of the metal foil by an atomic layer deposition method. The second dielectric layer contains an oxide of a second metal. The method further includes forming the first dielectric layer containing an oxide of the first metal between the metal foil and the second dielectric layer by subjecting the metal foil to an anodization treatment.