Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6641274 | Surface light source device | Hiromi Sasako | 2003-11-04 |
| 6104854 | Light regulator and surface light source device | Kazumasa Ohsumi | 2000-08-15 |
| 5788356 | Surface light source device of side light type | Kayoko Watai, Hiromi Sasako | 1998-08-04 |