Title:
POWDER FOR CAPACITOR, SINTERED BODY THEREOF AND CAPACITOR USING THE SINTERED BODY
Document Type and Number:
WIPO Patent Application WO2002045106
Kind Code:
A3
Abstract:
A powder for capacitors, which contains 0.01 to 15 atom % of zirconium and mainly comprises niobium and/or tantalum having an average particle size of from 0.2 to 5 mu m; a sintered body thereof; an 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 powder for capacitors of the present invention have a large capacitance per unit mass and good leakage current characteristics.
Inventors:
OMORI KAZUHIRO (JP)
NAITO KAZUMI (JP)
NAITO KAZUMI (JP)
Application Number:
PCT/JP2001/010484
Publication Date:
February 20, 2003
Filing Date:
November 30, 2001
Export Citation:
Assignee:
SHOWA DENKO KK (JP)
OMORI KAZUHIRO (JP)
NAITO KAZUMI (JP)
OMORI KAZUHIRO (JP)
NAITO KAZUMI (JP)
International Classes:
C22C1/04; H01G9/042; H01G9/052; (IPC1-7): H01G9/052
Domestic Patent References:
| WO2000067936A1 | 2000-11-16 |
Foreign References:
| US3849124A | 1974-11-19 | |||
| EP0953847A1 | 1999-11-03 |
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