Issued Patents 2018
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10025176 | Mask blank substrate, substrate with multilayer reflective film, reflective mask blank, reflective mask, method of manufacturing mask blank substrate, method of manufacturing substrate with reflective film and method of manufacturing semiconductor device | Kazuhiro Hamamoto, Toshihiko Orihara, Tsutomu Shoki | 2018-07-17 |
| 10001699 | Mask blank substrate, substrate with multilayer reflection film, transmissive mask blank, reflective mask, and semiconductor device fabrication method | Toshihiko Orihara, Kazuhiro Hamamoto, Hirofumi Kozakai, Youichi Usui, Tsutomu Shoki | 2018-06-19 |
| 9897909 | Mask blank substrate, substrate with multilayer reflection film, transmissive mask blank, reflective mask blank, transmissive mask, reflective mask, and semiconductor device fabrication method | Kazuhiro Hamamoto, Toshihiko Orihara, Hirofumi Kozakai, Youichi Usui, Tsutomu Shoki | 2018-02-20 |