Kenichi Ogawa, President, Tokyo Sewerage Service Co., Ltd. He is the former Bureau Chief, and has engaged in planning, design, construction and maintenance of Tokyo’s sewerage syst...visualizza altroKenichi Ogawa, President, Tokyo Sewerage Service Co., Ltd. He is the former Bureau Chief, and has engaged in planning, design, construction and maintenance of Tokyo’s sewerage system since 1977.visualizza meno