Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6829039 | Optical member for photolithography and method of evaluating the same | Kazumasa Endo, Hiroyuki Hiraiwa, Masaaki Mochida | 2004-12-07 |
| 6769273 | Method of manufacturing silica glass member and silica glass member obtained by the method | Hiroyuki Hiraiwa | 2004-08-03 |