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