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