Inventor
FUKUI KUNIHIRO
JP13 patents
⚠️ This page may combine multiple inventors who share the name “FUKUI KUNIHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO METAL IND
8 patentsUS4630849ADec 23, 1986
Oil well pipe joint
SUMITOMO METAL IND185 citations96
US4474651AOct 2, 1984
Oil well casing and tubing joint and production of same
SUMITOMO METAL IND56 citations93
US5584428ADec 17, 1996
Process for manufacturing clad pipe
SUMITOMO METAL IND28 citations90
US5356724AOct 18, 1994
Excellent far-infrared radiating material
SUMITOMO METAL IND34 citations90
US4871194AOct 3, 1989
Oil well pipe joint and manufacturing method therefor
SUMITOMO METAL IND36 citations90
US4464232AAug 7, 1984
Production of one-side electroplated steel sheet
SUMITOMO METAL IND41 citations88
US7399535B2Jul 15, 2008
Hot press-formed article
SUMITOMO METAL IND13 citations82
US7641169B2Jan 5, 2010
Substrate for a stamper
SUMITOMO METAL IND0 citations45