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Yoshiaki Yasumasa

SC Sumitomo Chemical: 1 patents #2,469 of 4,033Top 65%
📍 Toyonaka, JP: #733 of 1,166 inventorsTop 65%
Overall (All Time): #4,070,622 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4332591 Analytical method and apparatus for the determination of total nitrogen contents in aqueous systems Naobumi Oi, Tadamasa Itoh 1982-06-01