Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11073756 | Photomask blank, photomask blank making method, and photomask making method | Takuro Kosaka, Hideo Kaneko, Shigeo Irie | 2021-07-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11073756 | Photomask blank, photomask blank making method, and photomask making method | Takuro Kosaka, Hideo Kaneko, Shigeo Irie | 2021-07-27 |