Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10241392 | Glass substrate for mask blank, and method for producing the same | Yuzo Okamura, Naohiro Umeo | 2019-03-26 |
| 10222689 | Mask blank | Yuzo Okamura | 2019-03-05 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10241392 | Glass substrate for mask blank, and method for producing the same | Yuzo Okamura, Naohiro Umeo | 2019-03-26 |
| 10222689 | Mask blank | Yuzo Okamura | 2019-03-05 |