Patent 10236128 was granted and assigned to Panasonic on March, 2019 by the United States Patent and Trademark Office.
An electrolytic capacitor production method is performed in the following procedure. An anode body having a dielectric layer is impregnated with a dispersion containing a conductive polymer and a first solvent. Then, a pH of the dispersion with which the anode body has been impregnated is adjusted or a base is added to the dispersion with which the anode body has been impregnated. Then, at least a part of the first solvent is removed from the anode body.