Inventor
UMINO MASAHIDE
JP5 patents
Patents
5 patentsUS6479013B1Nov 12, 2002
Casting components made from a tool steel
SUMITOMO METAL IND29 citations89
US6478898B1Nov 12, 2002
Method of producing tool steels
SUMITOMO METAL IND17 citations82
US4448746AMay 15, 1984
Process for producing alloy steel powder
SUMITOMO METAL IND26 citations78
US4437891AMar 20, 1984
Oil-atomized low-alloy steel powder
SUMITOMO METAL IND18 citations70
US7566372B2Jul 28, 2009
Railway car wheel
SUMITOMO METAL IND1 citations50