Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7732101 | Method of producing a glass substrate for a mask blank by polishing with an alkaline polishing liquid that contains colloidal silica abrasive grains | Kesahiro Koike | 2010-06-08 |
| 7413832 | Method of producing a glass substrate for a mask blank, method of producing a mask blank, and method of producing a transfer mask | Kesahiro Koike | 2008-08-19 |