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Patent applications and USPTO patent grants for Shi; Wenfeng.The latest application filed is for "method for preparing a tantalum powder".
Patent | Date |
---|---|
Method for preparing a tantalum powder Grant 9,199,307 - Yang , et al. December 1, 2 | 2015-12-01 |
Process for preparing tantalum powder for capacitors Grant 8,673,052 - Shi , et al. March 18, 2 | 2014-03-18 |
Method For Preparing A Tantalum Powder App 20120291593 - Yang; Guoqi ;   et al. | 2012-11-22 |
Process for Preparing Tantalum Powder for Capacitors App 20100326239 - SHI; Wenfeng ;   et al. | 2010-12-30 |
Tantalum Powder, Method For Preparing The Same, And Electrolytic Capacitor Anode Made Of The Tantalum Powder App 20100226070 - Yang; Guoqi ;   et al. | 2010-09-09 |
Process for preparing powder of niobium suboxides or niobium Grant 7,727,508 - Shi , et al. June 1, 2 | 2010-06-01 |
Process For Preparing Powder Of Niobium Suboxides Or Niobium App 20090053132 - SHI; Wenfeng ;   et al. | 2009-02-26 |
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