Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10146125 | Glass substrate for mask blank, mask blank, photomask, and method for manufacturing glass substrate for mask blank | Yuzo Okamura, Nobuhiko Ikenoya | 2018-12-04 |
| 10146126 | Glass substrate for mask blank, mask blank, photomask, and method for manufacturing glass substrate for mask blank | Yuzo Okamura, Nobuhiko Ikenoya | 2018-12-04 |