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Kenichi Sawara
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Niihama, JP
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last 30 patents
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Patent Grant
Metal-corrosion inhibitor and cleaning liquid
Patent number
6,200,947
Issue date
Mar 13, 2001
Sumitomo Chemical Company, Limited
Masayuki Takashima
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Patent Grant
Process for producing trialkylarsenic compound
Patent number
4,906,762
Issue date
Mar 6, 1990
Sumitomo Chemical Company, Limited
Kenichi Sawara
C07 - ORGANIC CHEMISTRY
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Patent Grant
Purification of organometallic compounds
Patent number
4,797,500
Issue date
Jan 10, 1989
Sumitomo Chemical Company, Ltd.
Hidekimi Kadokura
C07 - ORGANIC CHEMISTRY