Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7979473 | Association rule extraction method and system | Yoshitaka Bito | 2011-07-12 |
| 7228416 | Database access method and system capable of concealing the contents of query | Itaru Nishizawa, Kazutomo Ushijima | 2007-06-05 |
| 6898594 | Integrated database system and program storage medium | Kazutomo Ushijima, Itaru Nishizawa | 2005-05-24 |
| 6832216 | Method and system for mining association rules with negative items | Itaru Nishizawa, Kazutomo Ushijima | 2004-12-14 |