Patent ID: 8644004

Claim:
A method of manufacturing an electrolytic capacitor, comprising the steps of: preparing a cathode foil which has one end; attaching first and second cathode lead terminals to said cathode foil, said first cathode lead terminal being arranged closer to said one end of said cathode foil than said second cathode lead terminal; preparing an anode foil which has one end; attaching first and second anode lead terminals to said anode foil, said first anode lead terminal being arranged closer to said one end of said anode foil than said second anode lead terminal; preparing a core which has an axis, said core having, in a cross-section perpendicular to said axis, a first length along a first straight line which passes through said axis and a second length along a second straight line which passes through said axis and is orthogonal to said first straight line, said first length being smaller than said second length; and winding said cathode foil and said anode foil together around said core from said one end of each of said cathode foil and said anode foil, said winding being performed such that, in said cross-section, said first straight line lies between said first cathode lead terminal and said first anode lead terminal and said second straight line lies between said second cathode lead terminal and said second anode lead terminal.