Nitto Kohki Co., Ltd. engages in the manufacture and sale of fluid couplings, robots, balancers, and other industrial equipment. It operates through the following business segments: Quick-Connecting Fluid Coupling, Machine Tools, Linear Driven Pump, and Construction Equipment. The Quick-Connecting Fluid Coupling segment manufactures fittings and replacement materials for pneumatic and hydraulic tools, cylinders, and attachments. The Machine Tools segment develops labor-saving machine tools. The Linear Driven Pump segment offers blowers for septic tanks and labor-saving pumps incorporated in health and medical equipment. The Construction Equipment segment produces automatic hinges. The company was founded by Toshio Mikiya on October 22, 1956 and is headquartered in Tokyo, Japan.