Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6822707 | Optical sheet and display device having the optical sheet | Toshihiko Ariyoshi, Makoto Tsumura | 2004-11-23 |
| 6709122 | Plane-like lighting units and display equipment provided therewith | Ikuo Hiyama, Makoto Tsumura, Shusuke Endo | 2004-03-23 |