申请人 |
SADATSUKA MASAYUKI;ZENITAKA CORP;PENTA OCEAN CONSTR CO LTD;SUMITOMO CONSTR CO LTD;TOKYU CONSTR CO LTD;JDC CORP;FUDO CONSTR CO LTD |
发明人 |
SADATSUKA MASAYUKI;IDA TAKAHISA;HAMADA KAZUTO;KANEKO MASASHI;CHOKAI SUMIO;ASAGAMI YUJI;NINOMIYA KOJI;OKU TOSHIAKI |