TUNGSTEN POWDER AND ANODE BODY OF CAPACITOR
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United States of America Patent
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Jul 7, 2016
app pub date -
Jul 16, 2014
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Aug 30, 2013
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Abstract
The present invention provides an electrolytic capacitor which uses, as an anode body thereof, a sintered body that is obtained by sintering a tungsten powder containing zirconium element and/or hafnium element so that the content of one of these elements, which is contained in a larger amount, is 0.04 to 1 mass % and the element(s) is localized in the surface of tungsten particles. The electrolytic capacitor of the present invention has a large capacitance and good LC characteristics, while being suppressed in capacitance variation.
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