Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12351896 | 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 | — | 2025-07-08 |
| 12222069 | High-pressure hydrogen tank | Toshio Takano, Hiroshi Okano, Nobuyuki Ishikawa, Kazuki Matsubara | 2025-02-11 |
| 12203602 | Hydrogen supply system | Hiroshi Okano, Shusaku Takagi, Nobuyuki Ishikawa, Kazuki Matsubara, Toshio Takano +4 more | 2025-01-21 |
| 11982644 | Life estimation apparatus for accumulator and life extension method for pressure accumulator | Hiroshi Okano, Nobuyuki Ishikawa, Kazuki Matsubara, Toshio Takano | 2024-05-14 |
| 11788687 | Method of manufacturing pressure accumulator | Hiroshi Okano, Nobuyuki Ishikawa, Kazuki Matsubara, Toshio Takano | 2023-10-17 |
| 10837602 | Hydrogen storage tank | Shusaku Takagi, Mitsuo Kimura, Nobuyuki Ishikawa, Toshio Takano | 2020-11-17 |
| 10788083 | Work vehicle | Daisuke Inaba, Tomoya Omura | 2020-09-29 |
| 10697036 | Steel material for composite pressure vessel liner and steel pipe or tube for composite pressure vessel liner | Shusaku Takagi, Mitsuo Kimura, Hiroshi Okano | 2020-06-30 |
| 10295453 | Gas-phase hydrogen permeation test device and method of protecting gas-phase hydrogen permeation test device | Shusaku Takagi | 2019-05-21 |
| 10253385 | Abrasion resistant steel plate having excellent low-temperature toughness and hydrogen embrittlement resistance and method for manufacturing the same | Shinichi Miura, Nobuyuki Ishikawa | 2019-04-09 |
| 10106875 | Steel material, hydrogen container, method for producing the steel material, and method for producing the hydrogen container | Shusaku Takagi | 2018-10-23 |
| 10093998 | Abrasion resistant steel plate having excellent low-temperature toughness and method for manufacturing the same | Shinichi Miura, Nobuyuki Ishikawa | 2018-10-09 |
| 8728257 | High tensile strength steel material having excellent delayed fracture resistance property, and method of manufacturing the same | Kenji Oi, Kenji Hayashi | 2014-05-20 |
| 8357252 | High tensile strength steel having favorable delayed fracture resistance and method for manufacturing the same | Kenji Oi, Kenji Hayashi, Nobuo Shikanai | 2013-01-22 |
| 7648597 | Method for manufacturing high tensile strength steel plate | Kenji Oi | 2010-01-19 |