RI

Ryouichi Itoh

DC Daisen Industry Co.: 1 patents #9 of 17Top 55%
ML Mitsubishi Petrochemical Company Limited: 1 patents #291 of 670Top 45%
Overall (All Time): #4,071,030 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

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