METHOD OF ETCHING ALMINIUM FOIL FOR AN ELCTROLYTIC CAPACITOR

Title:

METHOD OF ETCHING ALMINIUM FOIL FOR AN ELCTROLYTIC CAPACITOR

Document Type and Number:

WIPO Patent Application WO/1982/002620

Kind Code:

A1

Abstract:

Alminium foil is made by etching using a high frequency current with a frequency of more than 1 KHz and an alternating or pulsating current. The foil makes it possible to extraordinarily increase the efficiency of the effective area of an electrolytic capacitor.

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Inventors:

OKAMOTO YOSHIYUKI (JP)

Application Number:

PCT/JP1982/000022

Publication Date:

August 05, 1982

Filing Date:

January 25, 1982

Export Citation:

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Assignee:

OKAMOTO YOSHIYUKI

International Classes:

C25F3/04; H01G9/04; H01G9/055; (IPC1-7): H01G9/04

Foreign References:

US3477929A	1969-11-11
JPS291962B1
JPS5174267A	1976-06-28

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