Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6340540 | Hologram recording sheet holographic optical element using said sheet and its production process | Kenji Ueda, Tsuyoshi Hotta, Atsushi Sekiguchi, Hideyuki Iriyama | 2002-01-22 |