申请人 |
SUMIKIN SEIGYO ENG KK;NIPPON STEEL METAL PROD CO LTD;BRIDGESTONE CORP;SHINKO KENZAI KOGYO KK;NKK CORP;TOKYO SEIKO CO LTD;SUMITOMO KINZOKU KENZAI KK;NIPPON YAKIN KOGYO CO LTD |
发明人 |
KOBAYASHI HIDETO;YAMAMOTO TOSHIYUKI;HIROTA TETSUYA;YAMAMOTO AKISHI;MACHIDA SADAO;TAKAO SHINICHI;TAKAMI NORIYUKI;OMOTE NOBUHITO;KAWADA KOJI;KAWAHARA KENJI;ICHINOSE KIYOSHI |