Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10788747 | Photomask blank and method for producing photomask | Yukio Inazuki, Naoki Matsuhashi | 2020-09-29 |
| 10782608 | Method for preparing photomask blank, photomask blank, method for preparing photomask, photomask, and metallic chromium target | Yukio Inazuki, Tsutomu Yuri | 2020-09-22 |