申请人 |
JFE STEEL CORPORATION;YAMANAKA, YOICHIRO;SUZUKI, TAKESHI;IWASA, HIROKI;KITAGAWA, JUNICHI;WATANABE, TOYOFUMI;NAKAI, KATSUNORI;OTA, MITSUNORI |
发明人 |
YAMANAKA, YOICHIRO;SUZUKI, TAKESHI;IWASA, HIROKI;KITAGAWA, JUNICHI;WATANABE, TOYOFUMI;NAKAI, KATSUNORI;OTA, MITSUNORI |