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Toshio Koma
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Amagasaki, JP
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last 30 patents
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Patent Grant
Coal dispersing oil
Patent number
4,187,078
Issue date
Feb 5, 1980
Nippon Oil and Fats Company, Limited
Hirozumi Shimizu
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...