YI

Yo-ichi Ikeda

MC Maruzen Petrochemical Co.: 1 patents #83 of 174Top 50%
Overall (All Time): #3,822,716 of 4,157,543Top 95%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5206358 Process for manufacturing petroleum resin Akira Takahashi, Fumio Ochiai, Katsumi Minomiya 1993-04-27