| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrolytic capacitor and a manufacturing method thereof wherein the housing efficiency for capacitor elements into an outer case is high and the electrolytic capacitor is miniaturized. SOLUTION: In this electrolytic capacitor, external lead terminals each constructed of external lead wire and plate are connected to anode foil and cathode foil, respectively. These anode foil and cathode foil having a separator between them are wound to have gradually increasing diameter to form capacitor elements, and are housed in the cylindrical outer case with a bottom. The capacitor elements comprises a core wound in an elliptical shape consisting of counterposed straight lines and arcuate portions and a pair of counterposed external lead terminals wound about this wound core, and the ends of the wound core in the major axis direction of the wound core and at least one ends of the plates of the external lead terminals form a virtual circle. COPYRIGHT: (C)2006,JPO&NCIPI
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