Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6807395 | Computer assisted learning system, storage server used for computer assisted learning system and computer readable media recording program used in storage server | Hiroshi Yamamoto, Masanori Kawasumi, Yuki Kamata, Tatsuya Haraguchi, Shuichi Tsujimoto | 2004-10-19 |
| 6705781 | Printing service method for printing system and the printing system | — | 2004-03-16 |
| 6687742 | Communication control method for electronic mail system | — | 2004-02-03 |