Electricity: electrical systems and devices – Electrolytic systems or devices – Liquid electrolytic capacitor
Reexamination Certificate
2011-03-01
2011-03-01
Ha, Nguyen T (Department: 2835)
Electricity: electrical systems and devices
Electrolytic systems or devices
Liquid electrolytic capacitor
C361S516000, C361S519000, C361S523000, C361S525000, C361S528000
Reexamination Certificate
active
07898794
ABSTRACT:
A tantalum powder consisting of agglomerated primary particle with a minimum primary particle dimension of 0.2 to 0.8 μm, a specific surface area of 0.9 to 2.5 m2/g and a particle size distribution determined to ASTM B 822 corresponding to a D10 value of 5 to 25 μm, a D50 value of 20 to 140 μm and a D90 value of 40 to 250 μm, wherein the powder does not comprise an effective content of sintering protection agents.
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Bartmann Ulrich
Haas Helmut
Connolly Bove & Lodge & Hutz LLP
H. C. Starck GmbH
Ha Nguyen T
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