申请人 |
MITSUI PETROCHEMICAL INDUSTRIES, LTD. |
发明人 |
NAKASHIBA, AKIO, OSAKA GAS CO., LTD.;NISHIMURA, HIROYUKI, OSAKA GAS CO., LTD.;NAGATANI, FUMIO, MITSUI PETROCHEMICAL IND., LTD.;MITO, KAZUNORI, MITSUI PETROCHEMICAL IND., LTD.;SHIBABUCHI, TOSHIO, SHINWA SANGYO CO., LTD.;NAKAOKA, MIKIO, SHINWA SANGYO CO., LTD. |