申请人 |
TOKYO UNIV;NIPPON STEEL CHEM CO LTD;ARON KASEI CO LTD;UBE IND LTD;MINNESOTA MINING & MFG CO (3M);SEKISUI CHEM CO LTD;TEIJIN LTD;TOYODA GOSEI CO LTD;NISSEI PLASTICS IND CO;FANUC LTD;POLYPLASTICS CO;MITSUI PETROCHEM IND LTD;MUNEKATA KK |
发明人 |
YOKOI HIDETOSHI;OWADA SHIGERU;AIDA HIROSHI |