Katsuhiko Mutsuga
8Patents
4h-index
11Co-inventors
54Inventor score
Filing activity: Jul 10, 1996 → Nov 19, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6101443A | Route search and navigation apparatus and storage medium storing computer programs for navigation processing with travel difficulty by-pass | Physics | 381 | Expired |
| US5911773A | Navigation system for vehicles | Physics | 215 | Expired |
| US6922629B2 | Traffic information retrieval method, traffic information retrieval system, mobile communication device, and network navigation center | Physics | 193 | Expired |
| US6061628A | Navigation system for vehicles | Physics | 48 | Expired |
| US9696170B2 | Route calculation system, route calculation method, and computer program | Physics | 1 | Active |
| US10175056B2 | Route search system, method, and program | Physics | 0 | Active |
| US10168163B2 | Navigation system, navigation method, and navigation program | Physics | 0 | Active |
| US10209086B2 | Route search system, method, and program | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.