Kouji Ando

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Ehime-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process of solvent extraction of copper
- Patent number 7,449,160
- Issue date Nov 11, 2008
- Sumitomo Metal Mining Co., Ltd.
- Kenji Takeda
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Nickel refining method
- Patent number 7,138,005
- Issue date Nov 21, 2006
- Sumitomo Metal Mining Co., Ltd.
- Keiji Kudo
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Solution purification method for electrolyte
- Patent number 6,340,427
- Issue date Jan 22, 2002
- Sumitomo Metal Mining Co., Ltd.
- Atsushi Fukui
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Method of recovering antimony and bismuth from copper electrolyte
- Patent number 6,153,081
- Issue date Nov 28, 2000
- Atsushi Fukui
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR

Patents Applicationslast 30 patents

Information Patent Application
Method for extracting copper with solvent
- Publication number 20060147360
- Publication date Jul 6, 2006
- Sumitomo Metal Minning Co., LTD
- Kenji Takeda
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Nickel refining method
- Publication number 20030066389
- Publication date Apr 10, 2003
- Keiji Kudo
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...