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Kasane Yamashita
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Kawasaki, JP
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last 30 patents
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Patent Grant
Method of refining ferrous ion-containing acid solution
Patent number
4,889,697
Issue date
Dec 26, 1989
NKK Corporation
Tsutomu Fukushima
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Patent Grant
Method of removing dissolved heavy metals from aqueous waste liquids
Patent number
4,377,483
Issue date
Mar 22, 1983
Nippon Kokan Kabushiki Kaisha
Kasane Yamashita
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE