Nitto Kohki Co., Ltd., together with its subsidiaries, develops, manufactures, and sells couplings, machine tools, pumps, and door closers in Japan, America, Europe, East Asia, Southeast Asia, rest of Asia, and Oceania. It operates in four segments: Quick Connect Couplings Business; Power & Machine Tools Business; Pumps & Compressors Business; and Door Closers Business. The company offers quick connect couplings under the CUPLA brand, including HHV, compact zerospill, full blow, hygienic, mutli, semicon, hi, and micro for various air, water, oil, and chemical solutions; power and machine tools, such as atra ace, selfer, belton, and jet broach and chisel for boring, cutting, grinding, and scaling of steel materials; septic tank blowers and miniature labor-saving pumps for health and medical devices; and auto hinge center hang and flag type door closers, as well as sliding door closers for shopping centers, medical facilities, transportation equipment, and offices. It also provides electric screwdrivers under the delvo brand for assembling electronic devices comprising PCs, smartphones, printers, and automotive components; medo blowers; and robot products for deburring, scaling and chipping, surface sanding, screw fastening, air blow/vacuum lifting, and piping connection and disconnection. Nitto Kohki Co., Ltd. was incorporated in 1951 and is headquartered in Ota, Japan.