Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6826291 | Method and system for embedding information into contents | Hiroshi Yoshiura, Isao Echizen, Junichi Taguchi, Takao Arai, Toshifumi Takeuchi | 2004-11-30 |
| 6792425 | Secure multi database system including a client, multi database server, and database server | Yuichi Yagawa, Mitsuhiko Yoshimura, Shigetoshi Hayashi | 2004-09-14 |