Toru Hisamitsu
6Patents
4h-index
15Co-inventors
50Inventor score
Filing activity: Jun 2, 1997 → Jun 28, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5768451A | Character recognition method and apparatus | Physics | 29 | Expired |
| US7047255B2 | Document information display system and method, and document search method | Emerging Cross-Sectional Technologies | 23 | Expired |
| US6850937B1 | Word importance calculation method, document retrieving interface, word dictionary making method | Emerging Cross-Sectional Technologies | 17 | Expired |
| US7277881B2 | Document retrieval system and search server | Emerging Cross-Sectional Technologies | 8 | Expired |
| US7065518B2 | Search system | Emerging Cross-Sectional Technologies | 3 | Expired |
| US10395766B2 | Diagnostic process analysis system | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.