Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8171026 | Method and vector analysis for a document | — | 2012-05-01 |
| 7562066 | Method of vector analysis for a document | — | 2009-07-14 |
| 7499923 | Document clustering method and apparatus based on common information of documents | — | 2009-03-03 |
| 7392175 | Evaluating commonality of documents using segment vector, co-occurrence matrix, and common co-occurrence matrix | — | 2008-06-24 |
| 7308138 | Document segmentation method | — | 2007-12-11 |
| 7225120 | Method of extracting important terms, phrases, and sentences | — | 2007-05-29 |
| 7200802 | Evaluating distinctiveness of document | — | 2007-04-03 |
| 7194461 | Document and information retrieval method and apparatus | — | 2007-03-20 |
| 7185008 | Document classification method and apparatus | — | 2007-02-27 |
| 6778704 | Method and apparatus for pattern recognition using a recognition dictionary partitioned into subcategories | — | 2004-08-17 |
| 6671404 | Method and apparatus for recognizing patterns | Hiroyuki Shimizu | 2003-12-30 |
| 6466926 | Method for optimizing a recognition dictionary to distinguish between patterns that are difficult to distinguish | — | 2002-10-15 |
| 6038343 | Character recognition method and apparatus using writer-specific reference vectors generated during character-recognition processing | Hiroyuki Shimizu | 2000-03-14 |
| 5602938 | Method of generating dictionary for pattern recognition and pattern recognition method using the same | Teruo Akiyama, Minako Sawaki | 1997-02-11 |