Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8029948 | Photomask blank, photomask, and methods of manufacturing the same | Masahiro Hashimoto, Atsushi Kominato | 2011-10-04 |
| 7901842 | Photomask blank and method of producing the same, method of producing photomask, and method of producing semiconductor device | Takeyuki Yamada, Yasushi Okubo, Masao Ushida | 2011-03-08 |