Toshio Hirota
17Patents
11h-index
17Co-inventors
69Inventor score
Filing activity: May 30, 1975 → Oct 6, 2003
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4056764A | Power supply system having two different types of batteries and current-limiting circuit for lower output battery | Emerging Cross-Sectional Technologies | 188 | Expired |
| US4851601A | Processing for producing hydrocarbon oils from plastic waste | Chemistry; Metallurgy | 72 | Expired |
| US4066936A | Hybrid battery electric drive | Emerging Cross-Sectional Technologies | 27 | Expired |
| US4692391A | Cell stack assembly structure for fuel cell | Emerging Cross-Sectional Technologies | 27 | Expired |
| US7093515B2 | Accelerator pedal device for a vehicle | Emerging Cross-Sectional Technologies | 27 | Expired |
| US4520764A | Starter for an alcohol engine | Emerging Cross-Sectional Technologies | 27 | Expired |
| US3987352A | Method of charging storage battery in power supply system having another battery of larger capacity | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5141824A | Fuel-cell power-generation system | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4599282A | Fuel cell | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4873155A | Fuel cell manifolds | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5196801A | Capacitance-type fuel sensor for sensing methanol in methanol-mixed fuel | Physics | 11 | Expired |
| US6416129B1 | Child seat anchoring structure | Performing Operations; Transporting | 11 | Expired |
| US5041344A | Fuel cell cooling device | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4413594A | Method and apparatus for starting an alcohol engine | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US5053291A | Lateral layer-built fuel cell stack and module structure thereof | Electricity | 7 | Expired |
| US5170363A | Fuel gauge system for indicating amount of mixed fuel | Physics | 3 | Expired |
| US4329944A | Excess air factor control device for an alcohol reformed gas engine | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.