Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6836822 | Apparatus for and method of retrieving information | Motohiko Takayanagi, Koji Koga, Tadayasu Kaneko | 2004-12-28 |
| 6807571 | Information retrieval system with a search assist server | Koji Koga, Toshiaki Nakano | 2004-10-19 |