申请人 |
HITACHI METALS, LTD., TOKIO/TOKYO, JP;KUROSAKI REFRACTORIES CO., LTD., KITAKYUSHU, FUKUOKA, JP |
发明人 |
YANO, MITSURU, FUKUOKA, JP;TAKAHASHI, NORIO, OMIYA, SAITAMA, JP;NAKAMIZO, MASATOSHI;KIDO, TOMOYUKI, KITAKYUSHU, JP;KAWATA, MASATOSHI, KITAKYUSHU, FUKUOKA, JP;MORIKAWA, KATSUMI, FUKUOKA, JP |