Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6470090 | Digital watermark insertion system and digital watermark characteristic table creating device | Ryoma Oami, Yoshihiro Miyamoto | 2002-10-22 |
| 6415041 | Digital watermark insertion system and digital watermark characteristic table creating device | Ryoma Oami, Yoshihiro Miyamoto | 2002-07-02 |