Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6298344 | Document searching apparatus | Naohiko Noguchi, Yuji Kanno, Mitsuhiro Sato, Hayashi Ito | 2001-10-02 |
| 6212517 | Keyword extracting system and text retrieval system using the same | Mitsuhiro Sato, Naohiko Noguchi, Yuji Kanno, Masako Nomoto, Yoshio Fukushige | 2001-04-03 |
| 6154737 | Document retrieval system | Hideki Yasukawa, Naohiko Noguchi, Yuji Kanno, Mitsuhiro Sato, Masako Nomoto | 2000-11-28 |
| 5870507 | Rigidity checking method and apparatus with the result freed from the influence of picture resolutions | Kenji Nagao, Yuichi Kobayakawa | 1999-02-09 |
| 5706496 | Full-text search apparatus utilizing two-stage index file to achieve high speed and reliability of searching a text which is a continuous sequence of characters | Naohiko Noguchi, Yuji Kanno, Kazuaki Kurachi | 1998-01-06 |