MH

Motomu Hirakawa

SC Seitetsu Kagaku Co.: 1 patents #38 of 86Top 45%
📍 Kakogawa, JP: #405 of 707 inventorsTop 60%
Overall (All Time): #3,995,922 of 4,157,543Top 100%
1
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4590227 Water-swellable elastomer composition Morio Nakamura, Shigeji Obayashi, Shinichi Takemori, Hitoshi Tanaka 1986-05-20