申请人 |
NIPPON STEEL CORP., TOKIO/TOKYO, JP;MITSUBISHI JUKOGYO K.K., TOKIO/TOKYO, JP |
发明人 |
FUKUDA, YOSHIMORI NIPPON STEEL CORPORATION, FUTSU-SHI CHIBA 299-12, JP;SHIMOMURA, KENSUKE, HIKARI-SHI YAMAGUCHI 743, JP;ARAI, TAKASHI, HIKARI-SHI YAMAGUCHI 743 3, JP |