Inventor
WADA TSUNEMI
JP3 patents
Patents
3 patentsUS4933024AJun 12, 1990
Method for manufacturing a high strength rail with good toughness
NIPPON KOKAN KK23 citations87
US4767475AAug 30, 1988
Wear resistant rails having capability of preventing propagation of unstable rupture
NIPPON KOKAN KK17 citations72
US4886558ADec 12, 1989
Method for heat-treating steel rail head
NIPPON KOKAN KK11 citations68