| 申请人 |
NKK CORP;SUMITOMO METAL IND LTD;KAWASAKI STEEL CORP;KOBE STEEL LTD;BRIDGESTONE CORP |
发明人 |
OTA YUTAKA;SATO SHINKICHI;SHIBUSAWA SHINICHI;UEKI HIROMITSU;UEDA HIDEKI;KATO AKIRA;FUJIKAWA HIROYUKI;AKIMOTO EIJI;MIYAZAKI KENJI;KATO MASAYOSHI;SUGIZAKI MOTOYOSHI;KOJIMA MASAMI;YOSHIMOTO TAKAO |
