申请人 |
PETROLEUM ENERGY CENTER, TOKIO/TOKYO, JP;SHOWA SHELL SEKIYU K.K., TOKIO/TOKYO, JP |
发明人 |
YAMASE, OSAMU, C/O SHOWA SHELL SEKIYU K.K., CHIYODA-KU, TOKYO 100, JP;YOSHIZAWA, SUMIO, C/O SHOWA SHELL SEKIYU K.K., CHIYODA-KU, TOKYO 100, JP;MIURA, TADAYUKI, C/O SHOWA SHELL SEKIYU K.K., CHIYODA-KU, TOKYO 100, JP |