申请人 |
NIPPON STEEL & SUMIKIN ENGINEERING CO., LTD.;JAPAN OIL, GAS AND METALS NATIONAL CORPORATION;INPEX CORPORATION;JX NIPPON OIL & ENERGY CORPORATION;JAPAN PETROLEUM EXPLORATION CO., LTD.;COSMO OIL CO., LTD. |
发明人 |
ONISHI, YASUHIRO;TASAKA, KAZUHIKO;MIKURIYA, TOMOYUKI |