AT

Asako Tanaka

KC Kyowa Yuka Co.: 1 patents #29 of 57Top 55%
Overall (All Time): #3,602,755 of 4,157,543Top 90%
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Patent #TitleCo-InventorsDate
6331653 Process for producing 3,4-dihydroxy-3-cyclobutene-1,2-dione Shoshiro Matsushita, Ikuo Shimizu, Hiroshi Toyoda 2001-12-18