申请人 |
NIPPON STEEL CORP., TOKIO/TOKYO |
发明人 |
SHIMOMURA, KENSUKE-NIPPON STEEL CORP. TEC. DEV.;IMOTO, TADASHI-NIPPON STEEL CORP. HIKARI WO;OKIMORI, MAYUMI-NIPPON STEEL CORPOR. HIKARI W;OGAWA, GAKU-NIPPON STEEL CORPORATION HIKARI;TANAKA, TOMOAKI-NIPPON STEEL CORPOR. HIKARI |