Inventor

OOKI TAKAO

JP3 patents

Patents

3 patents

US5403545AApr 4, 1995

Bearing steel

AICHI STEEL WORKS LTD10 citations68

US4802918AFeb 7, 1989

Case hardened steel and method of manufacturing the same

AICHI STEEL WORKS LTD11 citations66

US4915900AApr 10, 1990

Free-cutting steel having high fatigue strength

AICHI STEEL WORKS LTD6 citations63