Kazunori Kawanaka

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Ehime-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of smelting copper sulfide concentrate
- Patent number 6,843,827
- Issue date Jan 18, 2005
- Sumitomo Metal Mining Co., Ltd.
- Yasuo Ojima
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
Method of smelting copper sulfide concentrate
- Publication number 20020043133
- Publication date Apr 18, 2002
- Yasuo Ojima
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...