Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6665668 | Document retrieval method and system and computer readable storage medium | Natsuko Sugaya, Katsumi Tada, Tadataka Matsubayashi, Yasuhiko Inaba, Yousuke Ushiroji | 2003-12-16 |