Tatsuro Ochi

Carbonitrided induction-hardened steel part with excellent rolling contact fatigue strength at high temperature and process for producing the same

Steel product for induction-hardened shaft component and shaft component using the same

High strength induction-hardened shaft parts

Process for producing steel bar wire rod for cold working

Manufacture of steel material for bearing having excellent spheroidizing characteristic

High strength bar steel excellent in machinability

Production of hot forged product with high fatigue strength

Production of semi-hot forged non-heat treated steel material excellent in yield strength, toughness, and fatigue characteristic

Production of induction hardened parts minimal in quenching crack

Non-refining steel for hot forging excellent in fatigue strength and production of non-refining hot forged product using the same steel