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:
Apr. 05, 2016
Filed:
Jun. 19, 2015
Showa Denko K.k., Tokyo, JP;
Kazumi Naito, Tokyo, JP;
Shoji Yabe, Tokyo, JP;
SHOWA DENKO K.K., Tokyo, JP;
Abstract
A method for manufacturing a tungsten capacitor element, which includes: a sintering process for forming an anode body by sintering a tungsten powder or a molded body thereof, a chemical conversion process for forming a dielectric layer on the surface layer of the anode body, a process for forming a semiconductor layer on the dielectric layer, a post-chemical conversion process for repairing the defects generated on the dielectric layer, a non-aqueous electrolysis process for conducting electrolysis operation by immersing the anode body in a solution of a non-aqueous solvent containing an oxidizing agent, and a process of forming a conductor layer on the anode body, in this order.