Multilayer capacitor and method for manufacturing multilayer capacitor
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United States of America Patent
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Aug 18, 2009
Grant Date -
Feb 8, 2007
app pub date -
Mar 19, 2004
filing date -
Mar 19, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A plurality of anode foils (7) and a plurality of cathode foils (8) respectively having connecting portions (12a, 12b) are alternately arranged with insulating separators (9) interposed therebetween. The connecting portions (12a, 12b) of the stacked electrode foils (7, 8) are respectively connected and united electrically and mechanically by friction stir welding, thereby forming a capacitor element (5). The capacitor element (5) is housed in a case (2), and the connecting portions (12a, 12b) are respectively connected to a positive electrode external terminal (4) and a negative electrode external terminal (4).
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