Kozo Yamaguchi
43Patents
26h-index
50Co-inventors
88Inventor score
Filing activity: Nov 22, 1982 → Mar 10, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5806617A | Hybrid vehicle | Emerging Cross-Sectional Technologies | 182 | Expired |
| US5775449A | Hybrid vehicle | Emerging Cross-Sectional Technologies | 127 | Expired |
| US4717368A | Stepless belt transmission | Mechanical Engineering; Lighting; Heating | 124 | Expired |
| US5513719A | Hybrid vehicle | Emerging Cross-Sectional Technologies | 111 | Expired |
| US5697466A | Hybrid vehicle | Emerging Cross-Sectional Technologies | 106 | 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 |
| US5865263A | Hybrid vehicle | Emerging Cross-Sectional Technologies | 91 | Expired |
| US5643119A | Hybrid vehicle powertrain | Emerging Cross-Sectional Technologies | 82 | Expired |
| US5788006A | Hybrid vehicle | Emerging Cross-Sectional Technologies | 81 | Expired |
| US6323613A | Drive unit with two coolant circuits for electric motor | Emerging Cross-Sectional Technologies | 81 | Expired |
| US5823281A | Hybrid vehicle | Emerging Cross-Sectional Technologies | 68 | Expired |
| US6201365A | Drive unit with coolant flow through a space separating an inverter from a casing housing an electric motor | Emerging Cross-Sectional Technologies | 63 | Expired |
| US6166498A | Drive unit for hybrid vehicles | Emerging Cross-Sectional Technologies | 61 | Expired |
| US5823282A | Hybrid vehicle with oil pump selectively driven by the engine, a generator or a motor | Emerging Cross-Sectional Technologies | 61 | Expired |
| US5799744A | Hybrid vehicle | Emerging Cross-Sectional Technologies | 57 | Expired |
| US5771478A | Vehicle drive system with electrical power regeneration | Emerging Cross-Sectional Technologies | 48 | Expired |
| US7276007B2 | Hybrid drive unit | Emerging Cross-Sectional Technologies | 46 | Expired |
| US5427196A | Electric motor drive system | Emerging Cross-Sectional Technologies | 45 | Expired |
| US7255186B2 | Hybrid drive system and vehicle equipped therewith | Emerging Cross-Sectional Technologies | 43 | Expired |
| US6636787B2 | Apparatus, method, and program for drivingly controlling hybrid vehicles | Emerging Cross-Sectional Technologies | 42 | Expired |
| US5730675A | Transmission for vehicle | Emerging Cross-Sectional Technologies | 42 | Expired |
| US5791427A | Hybrid vehicle | Emerging Cross-Sectional Technologies | 38 | Expired |
| US5899286A | Hybrid vehicle | Emerging Cross-Sectional Technologies | 35 | Expired |
| USRE36678E | Hybrid vehicle | General | 31 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.