Yasuo Tsumita

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Production process for niobium powder
- Patent number 7,138,004
- Issue date Nov 21, 2006
- Showa Denko K.K.
- Kouichi Wada
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Production process for niobium powder
- Patent number 6,780,218
- Issue date Aug 24, 2004
- Showa Denko Kabushiki Kaisha
- Kouichi Wada
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
NIOBIUM GRANULATED POWDER PRODUCTION METHOD
- Publication number 20160254100
- Publication date Sep 1, 2016
- SHOWA DENKO K.K.
- Yoshinori SHIBUYA
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
CHEMICAL CONVERSION BODY FOR NIOBIUM CAPACITOR POSITIVE ELECTRODE,...
- Publication number 20150352637
- Publication date Dec 10, 2015
- SHOWA DENKO K.K.
- Yoshinori SHIBUYA
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Application
CHEMICAL CONVERSION BODY FOR NIOBIUM CAPACITOR POSITIVE ELECTRODE,...
- Publication number 20150340162
- Publication date Nov 26, 2015
- SHOWA DENKO K.K.
- Yoshinori SHIBUYA
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Production process for niobium powder
- Publication number 20040168548
- Publication date Sep 2, 2004
- Showa Denko K.K.
- Kouichi Wada
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Production process for niobium powder
- Publication number 20030089197
- Publication date May 15, 2003
- Showa Denko K.K.
- Kouichi Wada
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...