Toru Yamamoto

Proterial Ltd. engages in the manufacture and sale of products for automobile, electronics, and infrastructure industry sectors. It operates through the following divisions: Specialty Steel, Magnetic Materials, Functional Components, and Cable Materials. The Specialty Steel division includes high-grade special steel, rolls, steel and ceramic structural parts, injection molding machine parts, and soft magnetic materials. The Magnetic Materials division comprises of magnets and ceramic products. The Functional Components division consists of high-grade casting components for automobiles, piping and infrastructure components, and construction components. The Cable Materials division offers electric wires and functional items such as industrial wire, equipment wire, industrial rubber, cable processed products, automotive electrical components, and brake hose. The company was founded on April 10, 1956 and is headquartered in Tokyo, Japan.