Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6520999 | Method of dyeing plastic lens and a dyeing system used therein | Kenichi KAMATA, Tetsuo Yamada | 2003-02-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6520999 | Method of dyeing plastic lens and a dyeing system used therein | Kenichi KAMATA, Tetsuo Yamada | 2003-02-18 |