Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10138533 | Method for producing high-purity calcium | — | 2018-11-27 |
| 10041155 | High-purity yttrium, process of producing high-purity yttrium, high-purity yttrium sputtering target, metal gate film deposited with high-purity yttrium sputtering target, and semiconductor element and device equipped with the metal gate film | — | 2018-08-07 |