申请人 |
KOBE STEEL LTD;SUMITOMO METAL IND LTD;KAWASAKI STEEL CORP;NKK CORP;YAMAMOTO TEKKOSHO:KK |
发明人 |
FUKUMORI KOJI;OKUDA KATSUJI;NAKATANI HIROSHI;KOTO HIROYUKI;SHOJI SHIGEO;SHIBAOKA FUMIO;FUJII KEIICHI;OKADA TOSHITAKE;ITO RYOJI;MIYAGAWA YUTAKA;KAWAKAMI HIROMI;YATAYA YOSHIKAZU |