申请人 |
MITSUI PETROCHEMICAL INDUSTRIES, LTD., TOKIO/TOKYO, JP |
发明人 |
OTAWA, YASUHIKO, MITSUI PETROCHEMICAL, ICHIHARA-SHI, CHIBA 299-01, JP;OKAMOTO, KATSUO, MITSUI PETROCHEMICAL, ICHIHARA-SHI, CHIBA 299-01, JP;KIOKA, MAMORU, MITSUI PETROCHEMICAL, KUGA-GUN, YAMAGUCHI 740, JP;UEDA, TAKASHI, MITSUI PETROCHEMICAL, KUGA-GUN, YAMAGUCHI740, JP |