Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6823694 | Method of manufacturing glass optical elements | Hiroyuki Sawada, Yuka Miyashita | 2004-11-30 |
| 6766661 | Method of manufacturing glass optical elements | Hiroyuki Sawada | 2004-07-27 |