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. 08, 2022
Filed:
Sep. 09, 2020
Japan Capacitor Industrial Co., Ltd., Fussa, JP;
JAPAN CAPACITOR INDUSTRIAL CO., LTD., Tokyo, JP;
Abstract
A solid electrolytic capacitor that includes a columnar metal core material having a valve function, the metal core material having a first end surface and a second end surface opposed to the first end surface, at least one of the first end surface and the second end surface having an area larger than that of a cross section of a central portion of the metal core material in a lengthwise direction of the metal core material, and the metal core material having a surface partially provided with a porous layer including an oxide film; a cathode layer including a conductive polymer, the cathode layer being electrically connected to the porous layer, first external terminals electrically connected to the first end surface and the second end surface, respectively; and a second external terminal different in polarity from the first external terminals and electrically connected to the cathode layer.