HS

Hirohumi Shiigi

TO Tokuyama: 1 patents #280 of 562Top 50%
Overall (All Time): #3,424,856 of 4,157,543Top 85%
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Patent #TitleCo-InventorsDate
7087798 Process for preparation of spirofluorenols Noriyuki Fukada, Kenji Tanaka, Masao Yamaguchi 2006-08-08