Specialized metallurgical processes – compositions for use therei – Compositions – Loose particulate mixture containing metal particles
Reexamination Certificate
2007-03-20
2007-03-20
Mai, Ngoclan T. (Department: 1742)
Specialized metallurgical processes, compositions for use therei
Compositions
Loose particulate mixture containing metal particles
C075S246000, C361S528000
Reexamination Certificate
active
10727548
ABSTRACT:
A niobium powder for capacitors, having an average particle size of from 10 to 500 μm, which is a granulated powder having an oxygen content of 3 to 9% by mass; a sintered body thereof; and a capacitor fabricated from the sintered body as one part electrode, a dielectric material formed on the surface of the sintered body, and another part electrode provided on the dielectric material. A capacitor manufactured from the sintered body of a niobium powder of the present invention is prevented from deterioration in the performance for a long period of time and has high reliability.
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International Search Report for PCT/JP01/10486 dated Feb. 26, 2002.
Nagato Nobuyuki
Naito Kazumi
Mai Ngoclan T.
Showa Denko K.K.
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