Inventor
AKITA SHINJI
JP11 patents
Patents
11 patentsUS4406141ASep 27, 1983
Straightening apparatus for steel pipes and the like
NIPPON KOKAN KK22 citations79
US4458885AJul 10, 1984
Quenching apparatus for steel pipes
NIPPON KOKAN KK13 citations73
US4387584AJun 14, 1983
Steel pipe rolling mill
NIPPON KOKAN KK9 citations73
US4382503AMay 10, 1983
Walking beam
NIPPON KOKAN KK9 citations73
US4424616AJan 10, 1984
Conditioning line for steel pipes
NIPPON KOKAN KK9 citations71
US4452061AJun 5, 1984
Seamless steel pipe manufacturing installation
NIPPON KOKAN KK19 citations70
US4711733ADec 8, 1987
Lubricant for the production of seamless tubes
NIPPON KOKAN KK14 citations68
US4449386AMay 22, 1984
Steel pipe rolling mill
NIPPON KOKAN KK4 citations62
US4444035AApr 24, 1984
Steel pipe rolling mill
NIPPON KOKAN KK3 citations62
US4406145ASep 27, 1983
Roll changing apparatus for rolling mills
NIPPON KOKAN KK3 citations61
US4498324AFeb 12, 1985
Restrained mandrel mill inlet table
NIPPON KOKAN KK0 citations49