Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6654742 | Method and system for document collection final search result by arithmetical operations between search results sorted by multiple ranking metrics | Kohichi Takeda | 2003-11-25 |
| 6512835 | Data hiding and extraction methods | Masayuki Numao, Shuichi Shimizu, Norishige Morimoto | 2003-01-28 |