Capacitor

Electricity: electrical systems and devices – Electrostatic capacitors – Fixed capacitor

Reexamination Certificate

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C423S409000

Reexamination Certificate

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07006343

ABSTRACT:
In a capacitor comprising a pair of electrodes and a dielectric substance intervening between the two electrodes, one of the electrodes is composed of sintered niobium nitride. Preferably, the dielectric substance is composed of niobium oxide and the electrode other than the electrode composed of sintered niobium nitride is composed of an ingredient selected from electrolytes, organic semiconductors and inorganic semiconductors. This capacitor has good environmental stability and good leak current characteristics.

REFERENCES:
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patent: 4190854 (1980-02-01), Redfern
patent: 4536414 (1985-08-01), Kroger et al.
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patent: 5194236 (1993-03-01), Koizumi et al.
patent: 5448447 (1995-09-01), Chang
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patent: 6115235 (2000-09-01), Naito
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patent: 1 219 748 (1971-01-01), None
patent: 60-121207 (1985-06-01), None
patent: 01-167206 (1989-06-01), None
patent: 3-150822 (1991-06-01), None
patent: 5-9790 (1993-01-01), None
patent: WO 98/19811 (1998-05-01), None
“Reactions During Sintering of Niobium Powder from Aluminothermic Reduction Product,” R & HM, Dec. 1985, vol. 4, pp. 189-194.
“The Influence of Gas Atmospheres on the First-Stage Sintering of High-Purity Niobium Powders,” Metallurgical Transactions, Jun. 1984, vol. 15A, pp. 1111-1116.

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