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:
Nov. 15, 2011
Filed:
Nov. 07, 2007
Jeffrey Poltorak, Fountain Inn, SC (US);
Christian Guerrero, Travelers Rest, SC (US);
Yongjian Qui, Greenville, SC (US);
Lance Thornton, Simpsonville, SC (US);
Jeffrey Poltorak, Fountain Inn, SC (US);
Christian Guerrero, Travelers Rest, SC (US);
Yongjian Qui, Greenville, SC (US);
Lance Thornton, Simpsonville, SC (US);
Kemet Electronics Corporation, Greenville, SC (US);
Abstract
Porous sintered bodies for capacitors formed from valve metals are treated by electrolysis to form a dielectric layer and coated with cathode layers. When standard parallelepiped shapes are used as they were passed, cathode coverage at the sharp corners and edges is non-uniform and failures occur at those locations. Treating pressed anode bodies with an abrasive process alters the sharpness of corners and edges, creating rounded transitions between primary surfaces and remove surface imperfections resultant from the pressing process both of which enhance cathode layer uniformity.