Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8048591 | Mask blank glass substrate, mask blank glass substrate manufacturing method, mask blank manufacturing method, and mask manufacturing method | Yasushi Okubo | 2011-11-01 |
| 8021804 | Photomask manufacturing method | Yasushi Okubo | 2011-09-20 |
| 7955763 | Mask blank glass substrate manufacturing method, mask blank manufacturing method, mask manufacturing method, mask blank glass substrate, mask blank, and mask | Akinori Kurikawa, Yasushi Okubo | 2011-06-07 |
| 7851108 | Mask blank glass substrate manufacturing method, mask blank manufacturing method, mask manufacturing method, mask blank glass substrate, mask blank, and mask | Akinori Kurikawa, Yasushi Okubo | 2010-12-14 |
| 5123088 | Method and apparatus for creating and displaying navigators for guiding to related image information | Hideki Koike, Tsutomu Horikoshi, Yoshinobu Tonomura, Tomio Kishimoto | 1992-06-16 |