Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6424980 | Integrated retrieval scheme for retrieving semi-structured documents | Yuichi Iizuka, Mitsuaki Tsunakawa, Toshihiro Nagasue, Takashi Hoshino | 2002-07-23 |
| 6233578 | Method and system for information retrieval | Gengo Suzuki, Eiji Okada, Naoya Kanou | 2001-05-15 |