US Patent 7749297 High capacitance niobium powders and electrolytic capacitor anodes

Patent 7749297 was granted and assigned to Cabot Corporation on July, 2010 by the United States Patent and Trademark Office.

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Patent

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Current Assignee

Cabot Corporation

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7749297

Patent Inventor Names

Kurt A. Habecker0

James A. Fife0

Date of Patent

July 6, 2010

Patent Application Number

10795968

Date Filed

March 8, 2004

Patent Primary Examiner

Roy King

Patent abstract

A niobium powder is described which when formed into an electrolytic capacitor anode, the anode has the capacitance of at least 62,000 CV/g. Methods of making flaked niobium powder which have high capacitance capability when formed into electrolytic capacitor anodes is also described. Besides niobium, the present invention is also applicable to other metals, including valve metals.

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