Title:
一酸化ニオブ解砕粉、一酸化ニオブ焼結体及び一酸化ニオブ焼結体を用いたコンデンサ
Document Type and Number:
Japanese Patent JP4480943
Kind Code:
B2
Abstract:
(1) A niobium monoxide powder for a capacitor represented by formula: NbOx (x = 0.8 to 1.2) and optionally containing other elements in an amount of 50 to 200,000 ppm, having a tapping density of 0.5 to 2.5 g/ml, an average particle size of 10 to 1000 mu m, angle of repose from 10 DEG to 60 DEG , the BET specific surface area from 0.5 to 40 m<2>/g and a plurality of pore diameter peak tops in the pore distribution, and a producing method thereof; (2) a niobium monoxide sintered body, which is obtained by sintering the above niobium monoxide powder and, having a plurality of pore diameter peak tops in a range of 0.01 mu m to 500 mu m, preferably, the peak tops of two peaks among the plurality of pore diameter peak tops having a highest relative intensity are present in the range of 0.2 to 0.7 mu m and in the range of 0.7 to 3 mu m, respectively, and a producing method thereof; (3) a capacitor using the above sintered body and a producing method thereof; and (4) an electronic circuit and electronic device using the above capacitor.
Inventors:
Kazuhiro Omori
Kazumi Naito
Toshiya Kawasaki
Koichi Wada
Kazumi Naito
Toshiya Kawasaki
Koichi Wada
Application Number:
JP2002590378A
Publication Date:
June 16, 2010
Filing Date:
May 14, 2002
Export Citation:
Assignee:
SHOWA DENKO K.K.
International Classes:
H01G9/04; H01G9/052; B22F1/06; C01G33/00; C01G35/00; C01G39/00; C01G41/00; C01G45/00; C01G47/00; C01G55/00; C04B35/00; C22C1/04; C22C32/00; H01G9/00; H01G9/02; H01G9/028; H01G9/14
Domestic Patent References:
| JP4010868B2 | 2007-11-21 | |||
| JPS57113211A | 1982-07-14 |
Foreign References:
| WO2000015555A1 | 2000-03-23 | |||
| WO2001099130A1 | 2001-12-27 |
Attorney, Agent or Firm:
Kunihisa Landlord
Atsushi Hayashi
Atsushi Hayashi