Mitsumasa Hoshi

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Oita-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of operating a copper smelting furnace
- Patent number 6,436,169
- Issue date Aug 20, 2002
- Nippon Mining & Metals Co., Ltd.
- Yushiro Hirai
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
Method of operating a copper smelting furnace
- Publication number 20010049982
- Publication date Dec 13, 2001
- Yushiro Hirai
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...