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Kouhei Sakuma
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Tokyo, JP
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last 30 patents
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Patent Grant
Dispersant for coal into oils
Patent number
4,177,039
Issue date
Dec 4, 1979
Lion Yushi Kabushiki Kaisha
Kouhei Sakuma
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...