申请人 |
NIPPON STEEL CORP., TOKIO/TOKYO, JP |
发明人 |
USHIGAMI, YOSHIYUKI, C/O NIPPON STEEL CO. R &D, KITAKYUSHU-SHI, FUKUOKA, JP;NAKAYAMA, TADASHI, C/O NIPPON STEEL CO. R & D, KITAKYUSHU-SHI, FUKUOKA, JP;TAKAHASI, NOBUYUKI, C/O NIPPON STEEL CO. R &, KITAKYUSHU-SHI, FUKUOKA, JP |