Title:
METHOD OF ETCHING ALUMINUM FOIL IN THE MANUFACTURING OF ALUMINUM ELECTROLYTIC CONDENSERS
United States Patent 3477929

Inventors:
Namikata, Takeshi
Kubo, Kazuo
Publication Date:
11/11/1969
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Assignee:
FUJITSU LTD
Primary Class:
205/646
Other Classes:
205/108, 205/681
International Classes:
C25F3/04; H01G9/04; C25F3/00; C23B3/02
US Patent References:
3249523Method of electrolytically etching aluminum
3321389Method of anodically etching aluminum foils at elevated temperatures in an electrolyte including chloride and sulfate ions




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