Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6471814 | Method of manufacturing plano lens | Hidetoshi Watanabe | 2002-10-29 |
| 6464367 | Surface light source system | Tomoya Yano | 2002-10-15 |
| 6342121 | Method of manufacturing plano lens | Hidetoshi Watanabe | 2002-01-29 |