Issued Patents 2022
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11305994 | Method for refining argon gas and recovering and refining apparatus for argon gas | Hideaki Matsushima | 2022-04-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11305994 | Method for refining argon gas and recovering and refining apparatus for argon gas | Hideaki Matsushima | 2022-04-19 |