今井 五郎 | Soil Engineering Department Research Institute Penta-ocean Construction Co. Ltd.

Soil Engineering Department Research Institute Penta-ocean Construction Co. Ltd.

五洋建設(株)技術研究所

Soil Engineering Division, Research Institute, Penta-Ocean Construction Co. Ltd.,

横浜国立大学工学部建設学科

Professor Ditto.

Soil Engineering Division, Engineering Research Institute, Penta-Ocean Construction Co., Ltd.,

Engineering Development Division Soil Engineering Division Research Institute Penta-ocean Constructi

Engineering Development Division, Soil Engineering Division, Research Institute, Penta-Ocean Constru

Department Of Civil Engineering Yokohama National University

Soil Engineering Division Research Institute Penta-ocean Construction Co. Ltd.