Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6418232 | Method of authenticating digital-watermark pictures | Kazunori Nakano, Hiroshi Yoshiura, Isao Echizen, Yutaka Kurosu | 2002-07-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6418232 | Method of authenticating digital-watermark pictures | Kazunori Nakano, Hiroshi Yoshiura, Isao Echizen, Yutaka Kurosu | 2002-07-09 |