to Ta metal
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United States of America Patent
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Jan 27, 2009
Grant Date -
Jul 14, 2005
app pub date -
Jan 14, 2005
filing date -
Jan 14, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Processes for producing valve metal are described, in which valve metal oxide is converted to valve metal using a vapor-phase transport agent to form a gaseous valve metal species in the presence of a solid getter material. Also described is the valve metal so produced, and anodes prepared from the valve metal, as well as electrolytic capacitors using the anodes.
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