Inventor
YOSHIWARA SEISHIRO
JP10 patents
⚠️ This page may combine multiple inventors who share the name “YOSHIWARA SEISHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON STEEL CORP
9 patentsUS4750947AJun 14, 1988
Method for surface-alloying metal with a high-density energy beam and an alloy metal
NIPPON STEEL CORP53 citations91
US4831708AMay 23, 1989
Method for producing a clad plate by hot rolling
NIPPON STEEL CORP44 citations89
US4567744AFeb 4, 1986
Method and apparatus for forming long cylindrical metal products
NIPPON STEEL CORP8 citations72
US4318294AMar 9, 1982
Method of manufacturing seamless metal pipes and tubes
NIPPON STEEL CORP15 citations71
US4289011ASep 15, 1981
Continuous pipe rolling process
NIPPON STEEL CORP17 citations71
US4190887AFeb 26, 1980
Press roll piercing method
NIPPON STEEL CORP10 citations71
US4638939AJan 27, 1987
Method for producing a clad plate by rolling
NIPPON STEEL CORP5 citations61
US4052874AOct 11, 1977
Method of producing tubular body in a press roll piercing mill
NIPPON STEEL CORP6 citations60
US4395896AAug 2, 1983
Rotary rolling mill and method for rolling of tubular products
NIPPON STEEL CORP5 citations55