Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6212517 | Keyword extracting system and text retrieval system using the same | Mitsuhiro Sato, Naohiko Noguchi, Yuji Kanno, Mitsuaki Inaba, Yoshio Fukushige | 2001-04-03 |
| 6154737 | Document retrieval system | Mitsuaki Inaba, Hideki Yasukawa, Naohiko Noguchi, Yuji Kanno, Mitsuhiro Sato | 2000-11-28 |
| 5991755 | Document retrieval system for retrieving a necessary document | Naohiko Noguchi | 1999-11-23 |