| 申请人 |
PUB WORKS RES INST MINISTRY OF CONSTR;SENTAN KENSETSU GIJUTSU CENTER;OOMOTOGUMI:KK;OKUMURA CORP;SUMITOMO CONSTR CO LTD;ZENITAKAGUMI:KK;DAIHO CONSTR CO LTD;TOA HARBOR WORKS CO LTD;NISHIMATSU CONSTR CO LTD;HITACHI ZOSEN CORP;PENTA OCEAN CONSTR CO LTD |
发明人 |
IGUMA AKIRA;ISHIMURA TOSHIAKI;SAKATA YUTAKA;TSURUOKA TANEHIDE |
