Neturen (高周波熱錬株式会社) is a company specializing in induction heating (IH) technology. It operates Specialty Steel and Wire Products, IH, and Technical divisions. The Specialty Steel and Wire Products division provides steel bars for prestressed concrete (PC bars), spring steel wires, machining equipment for PC bars, and pre-hardened wires. The IH division manufactures and sells induction heating equipment, high-frequency power supplies, and induction heat treatment service of mechanical parts. The Technical division is focused on the development of new products. The company also provides leasing of movables and immovables.