申请人 |
MITSUI PETROCHEMICAL INDUSTRIES, LTD., TOKIO/TOKYO, JP |
发明人 |
YAMAMOTO, RYOICHI, C/O MITSUI PETROCHEM. IND., LTD, KUGA-GUN, YAMAGUCHI 740, JP;SAKATA, TOSHIYUKI, C/O MITSUI PETROCHEM. IND., LTD, KUGA-GUN, YAMAGUCHI 740, JP;SUZUKI, HIROSHI, C/O MITSUI PETROCHEM. IND., LTD, KUGA-GUN, YAMAGUCHI 740, JP;OKAMOTO, ETSURO, C/O MITSUI PETROCHEM. IND.,LTD, KUGA-GUN, YAMAGUCHI 740, JP |