TO

Takasi Ohkawa

MI Mitsui Toatsu Chemicals, Incorporated: 1 patents #880 of 1,543Top 60%
Overall (All Time): #3,861,724 of 4,157,543Top 95%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5157130 Method of preventing discoloring of maleic anhydride Harusige Sugawara 1992-10-20