KK

Katuaki Kaneko

OC Onoda Cement Co.: 1 patents #57 of 155Top 40%
Overall (All Time): #4,022,367 of 4,157,543Top 100%
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Patent #TitleCo-InventorsDate
4544424 Gypsum board manufacturing method Takao Take, Sigeo Otozaki 1985-10-01