HK

Hidehiko Koishi

NC Nippon Steel Chemical Co.: 1 patents #136 of 380Top 40%
Overall (All Time): #3,976,273 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4672401 Heat-sensitive recording materials Yasuharu Yamada, Tadashi Komoto 1987-06-09