Patent · US Active

Valve metal powders

US7485257B2 · kind B2 · utility

1Cited by

9References

14Claims

0Family size

Assignee

H.C. STARCK INC. · US

Inventors

Josua Löffelholz · Langelsheim, DE
Hady Seyeda · Vienenburg, DE
Rudiger Wolf · Vienenburg, DE
Karlheinz Reichert · Wolfenbüttel, DE
Christoph Schnitter · Ottersberg, DE

Key dates

Filing date	Sep 28, 2005
Grant date	Feb 3, 2009
Priority date	—
Expiry date	Sep 28, 2026

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P10/25
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A valve metal powder by is prepared by a particular set of sequential steps that involves the use of precursor having preformed morphology. The method by which the valve metal is prepared includes a stabilization step that results in the valve metal powder having secondary and tertiary structures that each corresponds to the secondary and tertiary structures of the precursor. Also described is a method of producing solid electrolyte capacitors that include the valve metal powder of the present invention.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.