HK

Hiroshi Kushima

NC Nicca Chemical Co.: 1 patents #36 of 106Top 35%
Overall (All Time): #3,904,994 of 4,157,543Top 95%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4933494 Process for purification of dihydroxydiphenylsulfone Hiroyuki Tubota, Kazuhiko Sakai, Naoki Yamamoto 1990-06-12