Kohei Tsuda

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing ag-oxide-based electric contact material a...
- Patent number 7,189,656
- Issue date Mar 13, 2007
- Tokuriki Honten Co. Ltd.
- Sadao Sato
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
Method for manufacturing ag-oxide-based electric contact material a...
- Publication number 20050202610
- Publication date Sep 15, 2005
- Sato Sadeo
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...