Title:
NIOBIUM POWDER FOR CAPACITOR, SINTERED BODY THEREOF AND CAPACITOR USING THE SINTERED BODY
Document Type and Number:
WIPO Patent Application WO2002045108
Kind Code:
A8
Abstract:
A niobium powder for capacitors, having an average particle size of from 10 to 500 mu m, 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.
Inventors:
NAITO KAZUMI (JP)
NAGATO NOBUYUKI (JP)
NAGATO NOBUYUKI (JP)
Application Number:
PCT/JP2001/010486
Publication Date:
November 14, 2002
Filing Date:
November 30, 2001
Export Citation:
Assignee:
SHOWA DENKO KK (JP)
NAITO KAZUMI (JP)
NAGATO NOBUYUKI (JP)
NAITO KAZUMI (JP)
NAGATO NOBUYUKI (JP)
International Classes:
B22F5/00; C22C1/04; B22F1/00; C22C32/00; H01G9/028; H01G9/032; H01G9/035; H01G9/04; H01G9/042; H01G9/052; (IPC1-7): H01G9/042; H01G9/052
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