RI

Ryouichi Itoh

DC Daisen Industry Co.: 1 patents #1 of 3Top 35%
ML Mitsubishi Petrochemical Company Limited: 1 patents #14 of 63Top 25%
📍 Yokkaichi, JP: #5 of 58 inventorsTop 9%
Overall (1982): #32,387 of 81,411Top 40%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4333897 Method and mold for molding prefoamed particulate thermoplastic synthetic resin material Tatsuo Hayashi, Tatsumi Tsuji 1982-06-08