申请人 |
MITSUI PETROCHEMICAL INDUSTRIES, LTD., TOKIO/TOKYO, JP |
发明人 |
KOHYAMA, MASAKI, C/O MITSUI PETROCHEM. IND. LTD., KUGA-GUN, YAMAGUCHI 740, JP;UCHIYAMA, AKIRA, C/O MITSUI PETROCHEM. IND. LTD., CHIBA 299-01, JP;WATANABE, YUJI, C/O HI-SHEET INDUSTRIES LTD., IBARAKI 312, JP |