Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5702846 | Photosensitive composition for volume hologram recording | Akihiko Sato, Kenzo Mizutani, Iwao Sumiyoshi | 1997-12-30 |
| 5665494 | Photosensitive composition for volume hologram recording | Akihiko Sato, Iwao Sumiyoshi | 1997-09-09 |