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Hiroshi Tamehiro
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Kimitsu, JP
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last 30 patents
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Patent Grant
Super-high-strength line pipe excellent in low temperature toughnes...
Patent number
6,532,995
Issue date
Mar 18, 2003
Nippon Steel Corporation
Hitoshi Asahi
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Ultra-high strength, weldable steels with excellent ultra-low tempe...
Patent number
6,264,760
Issue date
Jul 24, 2001
Exxonmobil Upstream Research Company
Hiroshi Tamehiro
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for producing ultra-high strength, weldable steels with supe...
Patent number
6,248,191
Issue date
Jun 19, 2001
Exxonmobil Upstream Research Company
Michael J. Luton
C21 - METALLURGY OF IRON
Information
Patent Grant
Ultra-high strength, weldable, boron-containing steels with superio...
Patent number
6,228,183
Issue date
May 8, 2001
Exxonmobil Upstream Research Company
Narasimha-Rao V. Bangaru
C21 - METALLURGY OF IRON
Information
Patent Grant
Ultra-high strength, weldable, essentially boron-free steels with s...
Patent number
6,224,689
Issue date
May 1, 2001
Exxonmobil Upstream Research Company
Jayoung Koo
C21 - METALLURGY OF IRON
Information
Patent Grant
Steel having improved toughness in welding heat-affected zone
Patent number
5,985,053
Issue date
Nov 16, 1999
Nippon Steel Corporation
Takuya Hara
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Steel plate having excellent corrosion resistance and sulfide stres...
Patent number
5,817,275
Issue date
Oct 6, 1998
Nippon Steel Corporation
Hiroyuki Ogawa
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Weldable high strength steel having excellent low temperature tough...
Patent number
5,798,004
Issue date
Aug 25, 1998
Nippon Steel Corporation
Hiroshi Tamehiro
C21 - METALLURGY OF IRON
Information
Patent Grant
High strength line pipe steel having low yield ratio and excellent...
Patent number
5,755,895
Issue date
May 26, 1998
Nippon Steel Corporation
Hiroshi Tamehiro
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Line pipe metal arc welded with wire alloy
Patent number
5,723,089
Issue date
Mar 3, 1998
Nippon Steel Corporation
Rikio Chijiiwa
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
High-corrosion-resistant martensitic stainless steel having excelle...
Patent number
5,716,465
Issue date
Feb 10, 1998
Nippon Steel Corporation
Takuya Hara
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of producing clad steel plate having good low-temperature to...
Patent number
5,183,198
Issue date
Feb 2, 1993
Nippon Steel Corporation
Hiroshi Tamehiro
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Building construction steel having excellent fire resistance and lo...
Patent number
5,147,474
Issue date
Sep 15, 1992
Nippon Steel Corporation
Hiroshi Tamehiro
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for manufacturing building construction steel having excell...
Patent number
4,990,196
Issue date
Feb 5, 1991
Nippon Steel Corporation
Hiroshi Tamehiro
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of producing steel plate with good low-temperature toughness
Patent number
4,851,052
Issue date
Jul 25, 1989
Nippon Steel Corpopration
Koyoshi Nishioka
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of producing steel having high strength and toughness
Patent number
4,591,396
Issue date
May 27, 1986
Nippon Steel Corporation
Hiroo Mazuda
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of making wrought high tension steel having superior low tem...
Patent number
4,521,258
Issue date
Jun 4, 1985
Nippon Steel Corporation
Hiroshi Tamehiro
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for producing a high tension steel sheet product having an...
Patent number
RE31251
Issue date
May 24, 1983
Nippon Steel Corporation
Hajime Nakasugi
148 - Metal treatment
Information
Patent Grant
Process for producing high-tension bainitic steel having high-tough...
Patent number
4,219,371
Issue date
Aug 26, 1980
Nippon Steel Corporation
Hajime Nakasugi
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for producing a steel sheet having remarkably excellent toug...
Patent number
4,138,278
Issue date
Feb 6, 1979
Nippon Steel Corporation
Hajime Nakasugi
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for producing a high tension steel sheet product having an...
Patent number
4,105,474
Issue date
Aug 8, 1978
Nippon Steel Corporation
Hajime Nakasugi
C21 - METALLURGY OF IRON