Hiroshi Tamehiro
22Patents
11h-index
41Co-inventors
75Inventor score
Filing activity: Jul 11, 1975 → Jan 6, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5755895A | High strength line pipe steel having low yield ratio and excellent in low temperature toughness | Emerging Cross-Sectional Technologies | 72 | Expired |
| US6264760A | Ultra-high strength, weldable steels with excellent ultra-low temperature toughness | Chemistry; Metallurgy | 34 | Expired |
| US5798004A | Weldable high strength steel having excellent low temperature toughness | Chemistry; Metallurgy | 22 | Expired |
| US5985053A | Steel having improved toughness in welding heat-affected zone | Chemistry; Metallurgy | 22 | Expired |
| US6248191A | Method for producing ultra-high strength, weldable steels with superior toughness | Chemistry; Metallurgy | 19 | Expired |
| US6228183A | Ultra-high strength, weldable, boron-containing steels with superior toughness | Chemistry; Metallurgy | 18 | Expired |
| US4521258A | Method of making wrought high tension steel having superior low temperature toughness | Chemistry; Metallurgy | 18 | Expired |
| US6224689A | Ultra-high strength, weldable, essentially boron-free steels with superior toughness | Chemistry; Metallurgy | 17 | Expired |
| US4219371A | Process for producing high-tension bainitic steel having high-toughness and excellent weldability | Chemistry; Metallurgy | 16 | Expired |
| US4851052A | Method of producing steel plate with good low-temperature toughness | Chemistry; Metallurgy | 16 | Expired |
| US5183198A | Method of producing clad steel plate having good low-temperature toughness | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4105474A | Process for producing a high tension steel sheet product having an excellent low-temperature toughness with a yield point of 40 kg/mm.sup.2 or higher | Chemistry; Metallurgy | 9 | Expired |
| US4138278A | Method for producing a steel sheet having remarkably excellent toughness at low temperatures | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6532995B1 | Super-high-strength line pipe excellent in low temperature toughness and production method thereof | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4591396A | Method of producing steel having high strength and toughness | Chemistry; Metallurgy | 8 | Expired |
| US5716465A | High-corrosion-resistant martensitic stainless steel having excellent weldability and process for producing the same | Chemistry; Metallurgy | 7 | Expired |
| US4990196A | Process for manufacturing building construction steel having excellent fire resistance and low yield ratio | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5723089A | Line pipe metal arc welded with wire alloy | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5147474A | Building construction steel having excellent fire resistance and low yield ratio | Emerging Cross-Sectional Technologies | 4 | Expired |
| USRE31251E | Process for producing a high tension steel sheet product having an excellent low-temperature toughness with a yield point of 40 kg/mm.sup.2 or higher | General | 3 | Expired |
| US3973999A | Method for producing a high tensile strength and high toughness bend pipe | Chemistry; Metallurgy | 2 | Expired |
| US5817275A | Steel plate having excellent corrosion resistance and sulfide stress cracking resistance | Chemistry; Metallurgy | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.