KK

Koji Kumata

SI Sanyo Chemical Industries: 2 patents #123 of 607Top 25%
📍 Yawata, JP: #80 of 175 inventorsTop 50%
Overall (All Time): #2,334,541 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4717738 Polyurethane based on hydroxyl-containing polymer polyol and process for making the same Masao Fukuda 1988-01-05
4542165 Polyurethane based on epoxy-containing polymer polyol and process for making the same Masao Fukuda 1985-09-17