Inventor
TAMEHIRO HIROSHI
21 patents
⚠️ This page may combine multiple inventors who share the name “TAMEHIRO HIROSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON STEEL CORP
16 patentsUS5755895AMay 26, 1998
High strength line pipe steel having low yield ratio and excellent in low temperature toughness
NIPPON STEEL CORP114 citations98
US5985053ANov 16, 1999
Steel having improved toughness in welding heat-affected zone
NIPPON STEEL CORP32 citations92
US5798004AAug 25, 1998
Weldable high strength steel having excellent low temperature toughness
NIPPON STEEL CORP45 citations92
US5183198AFeb 2, 1993
Method of producing clad steel plate having good low-temperature toughness
NIPPON STEEL CORP34 citations92
US6532995B1Mar 18, 2003
Super-high-strength line pipe excellent in low temperature toughness and production method thereof
NIPPON STEEL CORP28 citations91
US4521258AJun 4, 1985
Method of making wrought high tension steel having superior low temperature toughness
NIPPON STEEL CORP39 citations90
US4138278AFeb 6, 1979
Method for producing a steel sheet having remarkably excellent toughness at low temperatures
NIPPON STEEL CORP25 citations80
US4219371AAug 26, 1980
Process for producing high-tension bainitic steel having high-toughness and excellent weldability
NIPPON STEEL CORP25 citations79
US4105474AAug 8, 1978
Process for producing a high tension steel sheet product having an excellent low-temperature toughness with a yield point of 40 kg/mm2 or higher
NIPPON STEEL CORP16 citations78
US5723089AMar 3, 1998
Line pipe metal arc welded with wire alloy
NIPPON STEEL CORP11 citations71
US5716465AFeb 10, 1998
High-corrosion-resistant martensitic stainless steel having excellent weldability and process for producing the same
NIPPON STEEL CORP15 citations70
US4591396AMay 27, 1986
Method of producing steel having high strength and toughness
NIPPON STEEL CORP19 citations69
US3973999AAug 10, 1976
Method for producing a high tensile strength and high toughness bend pipe
NIPPON STEEL CORP9 citations69
US5147474ASep 15, 1992
Building construction steel having excellent fire resistance and low yield ratio
NIPPON STEEL CORP9 citations68
US4990196AFeb 5, 1991
Process for manufacturing building construction steel having excellent fire resistance and low yield ratio
NIPPON STEEL CORP8 citations68
US5817275AOct 6, 1998
Steel plate having excellent corrosion resistance and sulfide stress cracking resistance
NIPPON STEEL CORP3 citations63
EXXONMOBIL UPSTREAM RES CO
4 patentsUS6264760B1Jul 24, 2001
Ultra-high strength, weldable steels with excellent ultra-low temperature toughness
EXXONMOBIL UPSTREAM RES CO67 citations96
US6248191B1Jun 19, 2001
Method for producing ultra-high strength, weldable steels with superior toughness
EXXONMOBIL UPSTREAM RES CO41 citations92
US6228183B1May 8, 2001
Ultra-high strength, weldable, boron-containing steels with superior toughness
EXXONMOBIL UPSTREAM RES CO44 citations92
US6224689B1May 1, 2001
Ultra-high strength, weldable, essentially boron-free steels with superior toughness
EXXONMOBIL UPSTREAM RES CO37 citations92