Inventor
NAKASUJI KAZUYUKI
JP13 patents
⚠️ This page may combine multiple inventors who share the name “NAKASUJI KAZUYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO METAL IND
12 patentsUS6659509B2Dec 9, 2003
Threaded joint for steel pipes
SUMITOMO METAL IND61 citations95
US6679526B2Jan 20, 2004
Threaded joint for an oil well pipe
SUMITOMO METAL IND44 citations92
US5533370AJul 9, 1996
Tube rolling method and apparatus
SUMITOMO METAL IND43 citations92
US5733667AMar 31, 1998
Plated nickel-titanium alloy product
SUMITOMO METAL IND33 citations91
US5004143AApr 2, 1991
Method of manufacturing clad bar
SUMITOMO METAL IND8 citations73
US4901553AFeb 20, 1990
Method of manufacturing a finned tube
SUMITOMO METAL IND5 citations73
US4512177AApr 23, 1985
Method of manufacturing metallic materials having a circular cross section
SUMITOMO METAL IND10 citations73
US4510787AApr 16, 1985
Method of manufacturing hollow rods
SUMITOMO METAL IND12 citations73
US5673584AOct 7, 1997
Method of and an apparatus for producing wire
SUMITOMO METAL IND10 citations72
US5501834AMar 26, 1996
Nonmagnetic ferrous alloy with excellent corrosion resistance and workability
SUMITOMO METAL IND16 citations72
US4959985AOct 2, 1990
Method of manufacturing metallic tube with spiral fin
SUMITOMO METAL IND3 citations62
US5007577AApr 16, 1991
Multiple-core complex material and method of manufacturing the same
SUMITOMO METAL IND5 citations57