Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6490681 | Electronic watermarking system | Seiji Kobayashi | 2002-12-03 |
| 6370272 | Multiple frame data hiding method and data detection method | — | 2002-04-09 |
SS
Shuichi Shimizu
Overall (2002): #41,670 of 266,432Top 20%
2
Patents 2002