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公开(公告)号:EP0919667B1
公开(公告)日:2003-07-09
申请号:EP97934759.8
申请日:1997-08-11
发明人: MURATA, Yoshihiko Mitsubishi Materials Corp. , KAMITANI, Kiyoshi Mitsubishi Materials Corporation , TAWARA, Hideo Mitsubishi Materials Corporation , OBATA, Hiroshi Mitsubishi Materials Corporation , YAMADA, Yutaka Mitsubishi Materials Corporation
IPC分类号: E01C7/08
CPC分类号: E01C1/005 , C04B14/305 , C04B2111/23 , E01C7/142 , E01C7/32