Nippon Seisen. 

Nippon Seisen Co.,Ltd. manufactures and sells stainless steel wires in Japan and internationally. Its stainless-steel wires include spring, micro, cold heading, shaft, weaving, and high-alloy/titanium wires for use in used in vehicles, aircraft, office automation appliances, electric appliances, medical instruments, commodities, and leisure goods, as well as screws, steel nettings, etc. The company also offers filament yarn, cloth, tape/belt, felt, knit, sleeve, chop, and other metal fibers under the NASLON brand name. In addition, it provides filters, such as metal filters, including NASLON filters, NPM filters, EXCEL PORE, FINE MET, and re-washable systems for synthetic fiber, film, resin, nuclear and thermal power generation, petroleum refining, medical, and other applications; and semiconductor gas filters for process and bulk gases, component protection, integrated gas panels, and diffusers. Further, the company offers straight bars; flat, angular, precise, and other shaped wires; palladium alloy roll-plated hydrogen separation membrane for high purity hydrogen gas production and purification; high-strength copper-alloy wire for optical pickup and camera module; duplex stainless-steel wire for corrosion resistant springs, ropes, fasteners, wire mesh, etc.; and co-based alloy for medical use. The company was formerly known as The Sanshin Special Wire Manufacturing Company and changed its name to Nippon Seisen Co.,Ltd. in October 1956. Nippon Seisen Co.,Ltd. was incorporated in 1951 and is headquartered in Osaka, Japan.