Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8340973 | Data embedding device and data extraction device | Yoshiteru Tsuchinaga, Yasuji Ota, Masanao Suzuki, Masakiyo Tanaka | 2012-12-25 |
| 6463183 | Image data processing method and apparatus and storage medium | — | 2002-10-08 |