US Patent 7803235 Passivation of tantalum and other metal powders using oxygen
Patent 7803235 was granted and assigned to Cabot Corporation on September, 2010 by the United States Patent and Trademark Office.
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Patent abstract
A method to passivate a metal or metal oxide or metal suboxide powder, especially a valve metal powder such as tantalum or niobium and the passivated powders formed therefrom are described. The method includes passivating a starting powder with a gas having at least 25 wt. % oxygen present. Passivation is preferably achieved without performing any evacuation steps. Capacitors made from the passivated powders are also described.
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US Patent 07803235 Passivation of tantalum and other metal powders using oxygen US Patent 7803235 Passivation of tantalum and other metal powders using oxygen
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Patent Number
0780323500
Patent Number
780323500
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Official Website
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
078032350
Date of Patent
September 28, 2010
0Patent Application Number
110310990
Date Filed
January 7, 2005
0Official Website
Patent Primary Examiner
Edits on 23 Sep, 2022
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
078032350
Date of Patent
September 28, 2010
0Patent Application Number
110310990
Date Filed
January 7, 2005
0Official Website
Patent Primary Examiner
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US Patent 07803235 Passivation of tantalum and other metal powders using oxygen
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07803235
Date of patent
September 28, 2010
Patent application number
11031099
Date Filed
January 7, 2005
Patent primary examiner
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