KABUSHIKIKAISHA EQUOS RESEARCH
99Patents
18Active
99Granted
45Portfolio score
Filing activity: Jan 14, 1992 → Mar 30, 2011 · 17 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5778326A | Hybrid vehicle with battery charge control relative to a driving route | Emerging Cross-Sectional Technologies | 349 | Expired |
| US6249740A | Communications navigation system, and navigation base apparatus and vehicle navigation apparatus both used in the navigation system | Physics | 293 | Expired |
| US6351698B1 | Interactive vehicle control system | Performing Operations; Transporting | 284 | Expired |
| US6278941A | Route guide system | Physics | 228 | Expired |
| US7246672B2 | Hybrid-vehicle power train | Emerging Cross-Sectional Technologies | 223 | Expired |
| US5806617A | Hybrid vehicle | Emerging Cross-Sectional Technologies | 182 | Expired |
| US5832396A | Hybrid vehicle including means for maintaining residual charge capacity based on destination information | Emerging Cross-Sectional Technologies | 161 | Expired |
| US6249720A | Device mounted in vehicle | Physics | 157 | Expired |
| US6314369A | Communications navigation system, and navigation base apparatus and navigation apparatus both used in the navigation system | Physics | 150 | Expired |
| US5892346A | Vehicle | Emerging Cross-Sectional Technologies | 138 | Expired |
| US5658681A | Fuel cell power generation system | Emerging Cross-Sectional Technologies | 138 | Expired |
| US5654908A | Electronic diary with navigation destination output | Physics | 131 | Expired |
| US5775449A | Hybrid vehicle | Emerging Cross-Sectional Technologies | 127 | Expired |
| US6577334B1 | Vehicle control | Performing Operations; Transporting | 121 | Expired |
| US5513719A | Hybrid vehicle | Emerging Cross-Sectional Technologies | 111 | Expired |
| US5697466A | Hybrid vehicle | Emerging Cross-Sectional Technologies | 106 | Expired |
| US6401029B1 | Assist device in designation of destination | Physics | 106 | Expired |
| US5631532A | Fuel cell/battery hybrid power system for vehicle | Emerging Cross-Sectional Technologies | 104 | Expired |
| US5382854A | Electrical motor drive apparatus with planetary gearing | Emerging Cross-Sectional Technologies | 101 | Expired |
| US5406492A | Directional voice-type navigation apparatus | Physics | 101 | Expired |
| US5433282A | Hybrid vehicle powered by an internal combustion engine and an electric motor | Emerging Cross-Sectional Technologies | 94 | Expired |
| US5562565A | Power transmission system in a hybrid vehicle | Emerging Cross-Sectional Technologies | 92 | Expired |
| US5409785A | Fuel cell and electrolyte membrane therefor | Emerging Cross-Sectional Technologies | 92 | Expired |
| US5865263A | Hybrid vehicle | Emerging Cross-Sectional Technologies | 91 | Expired |
| US6263276A | Communicatory navigation system | Physics | 84 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.