Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6399752 | Polyazo compound or salt thereof and dye-based polarization film containing the same | Narutoshi Hayashi, Toru Ashida | 2002-06-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6399752 | Polyazo compound or salt thereof and dye-based polarization film containing the same | Narutoshi Hayashi, Toru Ashida | 2002-06-04 |