申请人 |
NIPPON STEEL CORPORATION;METAL KAKEFU CO., LTD;HASHIMOTO, SHINICHIRO;HIRAKAWA, TOMOHISA;SHIMIZU, JUN;ITO, YOSHITOMO;IMAI, KIMIHIKO;MURAHASHI, YOSHIMITSU;HORIBE, TETSUSHI |
发明人 |
HASHIMOTO, SHINICHIRO;HIRAKAWA, TOMOHISA;SHIMIZU, JUN;ITO, YOSHITOMO;IMAI, KIMIHIKO;MURAHASHI, YOSHIMITSU;HORIBE, TETSUSHI |