申请人 |
NIPPON KOKAN K.K., TOKIO/TOKYO, JP |
发明人 |
OZEKI, AKICHIKA PATENT & LICENCE AND QUALITY, MARUNOUCHI CHIYODA-KU TOKYO, JP;YAMADA, KENZO PATENT & LICENCE AND QUALITY, MARUNOUCHI CHIYODA-KU TOKYO, JP;IWASAKI, KATSUHIRO PATENT & LICENCE AND QUALITY, MARUNOUCHI CHIYODA-KU TOKYO, JP |