Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5361168 | Lens element and lens barrel | Takashi Arai, Sachio Umetsu | 1994-11-01 |
| 5292457 | Method for molding optical elements | Takashi Arai | 1994-03-08 |
| 5290488 | Method for molding optical elements | Takashi Arai, Sachio Umetsu | 1994-03-01 |