申请人 |
ONODA CEMENT CO., LTD., ONODA, YAMAGUCHI, JP;NAGASAKA, HIDEO, HITACHI, IBARAKI, JP |
发明人 |
NAGASAKA, HIDEO, HITACHI-SHI IBARAKI-KEN, JP;ITOH, TSUTOMU, SHIBUYA-KU TOKYO, JP;MORITA, TADAO, CHIBA-SHI CHIBA-KEN, JP;YAMAMOTO, MASAHIRO, SAKURA-SHI CHIBA-KEN, JP |