Toshifumi Arai
18Patents
12h-index
25Co-inventors
74Inventor score
Filing activity: Sep 6, 1989 → Feb 2, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5732227A | Interactive information processing system responsive to user manipulation of physical objects and displayed images | Physics | 186 | Expired |
| US5436639A | Information processing system | Physics | 176 | Expired |
| US7006134B1 | Pen type input device with camera | Physics | 106 | Expired |
| US5841901A | Pattern recognition system | Physics | 83 | Expired |
| US5903667A | Handwritten input information processing apparatus and handwritten input information system using the same | Physics | 48 | Expired |
| US7783421B2 | Navigation device, navigation method, navigation program, server device, and navigation information distribution system | Physics | 47 | Active |
| US6266057A | Information processing system | Emerging Cross-Sectional Technologies | 45 | Expired |
| US5917490A | Interactive information processing system responsive to user manipulation of physical objects and displayed images | Physics | 38 | Expired |
| US5119479A | User interface system in which operation associated with input device may be selectively switched | Emerging Cross-Sectional Technologies | 30 | Expired |
| US6202925A | System for management of object carrying | Physics | 24 | Expired |
| US6125206A | Collaborative learning system and pattern recognition method | Physics | 14 | Expired |
| US6385339B1 | Collaborative learning system and pattern recognition method | Physics | 12 | Expired |
| US6369805B1 | Information processing system | Physics | 11 | Expired |
| US6081260A | Information processing system | Physics | 10 | Expired |
| US5777597A | Interaction support system and method | Physics | 3 | Expired |
| US7930100B2 | Computer readable medium storing a map data updating program and map data updating terminal | Physics | 2 | Active |
| US6962287B2 | Information access device and information delivery system | Physics | 1 | Expired |
| US6211857A | Interaction support system and method | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.