申请人 |
JAPAN PETROLEUM EXPLORATION CO., LTD.;NIPPON STEEL ENGINEERING CO., LTD.;COSMO OIL CO., LTD.;JX NIPPON OIL & ENERGY CORPORATION;JAPAN OIL, GAS AND METALS NATIONAL CORPORATION;INPEX CORPORATION |
发明人 |
YAMADA, EIICHI;KATO, YUZURU;ONISHI, YASUHIRO;MURATA, ATSUSHI |