Inventor · disambiguated record
Akihide Nagao
Also filed as: NAGAO AKIHIDE
15 granted patents·2 pending applications·26 citations·filing 2005–2020
87Inventor score
Top patents by PatentIndex Score
17 records- 0192US10106875B2Steel material, hydrogen container, method for producing the steel material, and method for producing the hydrogen containerJFE STEEL CORP·Filed 2014·Granted Oct 23, 2018·6 cites·8 claims
- 0290US10093998B2Abrasion resistant steel plate having excellent low-temperature toughness and method for manufacturing the sameJFE STEEL CORP·Filed 2014·Granted Oct 9, 2018·4 cites·22 claims
- 0388US7648597B2Method for manufacturing high tensile strength steel plateJFE STEEL CORP·Filed 2005·Granted Jan 19, 2010·8 cites·8 claims
- 0484US10697036B2Steel material for composite pressure vessel liner and steel pipe or tube for composite pressure vessel linerJFE STEEL CORP·Filed 2016·Granted Jun 30, 2020·1 cites·11 claims
- 0579US8728257B2High tensile strength steel material having excellent delayed fracture resistance property, and method of manufacturing the sameOI KENJI·Filed 2006·Granted May 20, 2014·4 cites·8 claims
- 0676US11788687B2Method of manufacturing pressure accumulatorJFE STEEL CORP·Filed 2019·Granted Oct 17, 2023·1 cites·8 claims
- 0776US10253385B2Abrasion resistant steel plate having excellent low-temperature toughness and hydrogen embrittlement resistance and method for manufacturing the sameJFE STEEL CORP·Filed 2014·Granted Apr 9, 2019·1 cites·22 claims
- 0872US10837602B2Hydrogen storage tankJFE STEEL CORP·Filed 2014·Granted Nov 17, 2020·1 cites·7 claims
- 0962US12351896B2Steel 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 environmentJFE STEEL CORP·Filed 2019·Granted Jul 8, 2025·0 cites·10 claims
- 1058US11982644B2Life estimation apparatus for accumulator and life extension method for pressure accumulatorJFE STEEL CORP·Filed 2019·Granted May 14, 2024·0 cites·9 claims
- 1157US8357252B2High tensile strength steel having favorable delayed fracture resistance and method for manufacturing the sameJFE STEEL CORP·Filed 2008·Granted Jan 22, 2013·0 cites·14 claims
- 1253US12222069B2High-pressure hydrogen tankJFE STEEL CORP·Filed 2019·Granted Feb 11, 2025·0 cites·14 claims
- 1351US10788083B1Work vehicleKUBOTA KK·Filed 2020·Granted Sep 29, 2020·0 cites·18 claims
- 1450US2016060738A1Steel structure for hydrogen gas, mehtod for producing hydrogen storage tank, and method for producing hydrogen line pipe (as amended)JFE STEEL CORP·Filed 2014·Application pending·0 cites
- 1549US12203602B2Hydrogen supply systemJFE STEEL CORP·Filed 2020·Granted Jan 21, 2025·0 cites·7 claims
- 1645US2018312935A1Steel structure for hydrogen gas with excellent hydrogen embrittlement resistance in high pressure hydrogen gas and method of producing the sameJFE STEEL CORP·Filed 2016·Application pending·0 cites
- 1740US10295453B2Gas-phase hydrogen permeation test device and method of protecting gas-phase hydrogen permeation test deviceJFE STEEL CORP·Filed 2016·Granted May 21, 2019·0 cites·4 claims
Join the waitlist — get patent alerts
Get an alert when Akihide Nagao files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →