Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6829367 | Content data judging apparatus | Kazuhara Toyokawa, Satoko Tonegawa | 2004-12-07 |
| 6782509 | Method and system for embedding information in document | Yuki HIRAYAMA, Tomio Amano, Shuichi Shimizu | 2004-08-24 |