Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11168375 | Steel pipe or tube for pressure vessels, method of producing steel pipe or tube for pressure vessels, and composite pressure vessel liner | Shusaku Takagi | 2021-11-09 |
| 11058988 | Ventilating air conditioning apparatus | — | 2021-07-13 |
| 10933371 | Gas recovery and concentration device | — | 2021-03-02 |