Akihide Nagao
15Patents
3h-index
16Co-inventors
53Inventor score
Filing activity: Jul 6, 2005 → Nov 18, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7648597B2 | Method for manufacturing high tensile strength steel plate | Chemistry; Metallurgy | 5 | Active |
| US10093998B2 | Abrasion resistant steel plate having excellent low-temperature toughness and method for manufacturing the same | Chemistry; Metallurgy | 3 | Active |
| US10106875B2 | Steel material, hydrogen container, method for producing the steel material, and method for producing the hydrogen container | Emerging Cross-Sectional Technologies | 3 | Active |
| US10837602B2 | Hydrogen storage tank | Emerging Cross-Sectional Technologies | 1 | Active |
| US11788687B2 | Method of manufacturing pressure accumulator | Emerging Cross-Sectional Technologies | 1 | Active |
| US8728257B2 | High tensile strength steel material having excellent delayed fracture resistance property, and method of manufacturing the same | Chemistry; Metallurgy | 1 | Active |
| US10253385B2 | Abrasion resistant steel plate having excellent low-temperature toughness and hydrogen embrittlement resistance and method for manufacturing the same | Chemistry; Metallurgy | 1 | Active |
| US10697036B2 | Steel material for composite pressure vessel liner and steel pipe or tube for composite pressure vessel liner | Emerging Cross-Sectional Technologies | 1 | Active |
| US10295453B2 | Gas-phase hydrogen permeation test device and method of protecting gas-phase hydrogen permeation test device | Physics | 0 | Active |
| US12203602B2 | Hydrogen supply system | Emerging Cross-Sectional Technologies | 0 | Active |
| US10788083B1 | Work vehicle | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US12351896B2 | Steel material for high-pressure hydrogen gas environment, steel structure for high-pressure hydrogen gas environment, and methods for producing steel material for high-pressure hydrogen gas environment | Emerging Cross-Sectional Technologies | 0 | Active |
| US8357252B2 | High tensile strength steel having favorable delayed fracture resistance and method for manufacturing the same | Chemistry; Metallurgy | 0 | Active |
| US11982644B2 | Life estimation apparatus for accumulator and life extension method for pressure accumulator | Physics | 0 | Active |
| US12222069B2 | High-pressure hydrogen tank | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.