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Onahama Smelting and Refining Company, Ltd.
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Process for recovering tellurium from copper electrolysis slime
Patent number
5,160,588
Issue date
Nov 3, 1992
Mitsubishi Materials Corporation
Yukio Sugawara
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Process for recovering arsenic trioxide from exhaust gas of smelting
Patent number
4,588,564
Issue date
May 13, 1986
Onahama Smelting and Refining Company, Ltd.
Hiroshi Kohno
C01 - INORGANIC CHEMISTRY