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Shoji Kubota
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Katsuta, JP
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last 30 patents
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Patent Grant
Aqueous alkali or alkaline treat and heat regeneration of NH.sub.4....
Patent number
4,219,441
Issue date
Aug 26, 1980
Hitachi, Ltd.
Yusaku Noshimura
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL