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. 13, 2016
Filed:
Jul. 24, 2014
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A solid electrolytic capacitor including a positive electrode including a sintered body of metal particles of tantalum or an alloy of tantalum, a dielectric layer formed on a surface of the positive electrode; and an electrolyte layer formed on the dielectric layer. A CV value (a value of product of capacitance and voltage) of the metal particles is 100000 μF·V/g or more. The positive electrode includes a surface region and an interior region, the surface region is configured by an outer surface of the positive electrode and a vicinity of the outer surface, and the interior region is an inner part of the positive electrode surrounded by the surface region. An average film thickness of the dielectric layer in the surface region is thicker than an average film thickness of the dielectric layer in the interior region.