Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4977249 | Metal of hydroxy-phenylaze and hydroxy-naphthylazo compounds as near-red absorbers | Hiroyoshi Yamaga, Noboru Akuzawa, Toshio Obara | 1990-12-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4977249 | Metal of hydroxy-phenylaze and hydroxy-naphthylazo compounds as near-red absorbers | Hiroyoshi Yamaga, Noboru Akuzawa, Toshio Obara | 1990-12-11 |