Kaoru Saruta

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Gojome-cho, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for leaching zinc concentrate
- Patent number 6,835,230
- Issue date Dec 28, 2004
- Dowa Mining Co., Ltd.
- Manabu Kanno
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method of recovering sulfur from minerals and other sulfur-containi...
- Patent number 6,696,037
- Issue date Feb 24, 2004
- Dowa Mining Co., Ltd.
- Yoshiyuki Watanabe
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method of leaching zinc concentrate
- Patent number 6,475,450
- Issue date Nov 5, 2002
- Dowa Mining Co., Ltd.
- Kaoru Saruta
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
Apparatus for leaching zinc concentrates
- Publication number 20040065987
- Publication date Apr 8, 2004
- DOWA MINING CO., LTD.
- Manabu Kanno
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Method and apparatus for leaching zinc concentrates
- Publication number 20030041692
- Publication date Mar 6, 2003
- DOWA MINING CO., LTD.
- Manabu Kanno
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...