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Shigeki Shimokawa
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Yokkaichi, JP
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last 30 patents
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Patent Grant
Method for enrichment and purification of aqueous hydrogen peroxide...
Patent number
5,456,898
Issue date
Oct 10, 1995
Mitsubishi Gas Chemical Co., Inc.
Shigeki Shimokawa
C01 - INORGANIC CHEMISTRY
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Patent Grant
Method for purifying impure aqueous hydrogen peroxide solution
Patent number
4,999,179
Issue date
Mar 12, 1991
Mitsubishi Gas Chemical Company, Inc.
Yasuo Sugihara
C01 - INORGANIC CHEMISTRY