Takashi Shirakawa
54Patents
14h-index
32Co-inventors
84Inventor score
Filing activity: Jun 9, 1980 → Jun 22, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6993901B2 | Excess air factor control of diesel engine | Emerging Cross-Sectional Technologies | 89 | Expired |
| US7631493B2 | Exhaust gas purification control of diesel engine | Emerging Cross-Sectional Technologies | 83 | Active |
| US6886334B2 | Combustion control of diesel engine | Emerging Cross-Sectional Technologies | 79 | Expired |
| US6301529A | Driving apparatus and method for hybrid vehicle | Emerging Cross-Sectional Technologies | 51 | Expired |
| US5706780A | Diesel engine fuel property determining device and controller | Emerging Cross-Sectional Technologies | 47 | Expired |
| US5682864A | Controller for internal combustion engines | Emerging Cross-Sectional Technologies | 47 | Expired |
| US6247311A | Diesel engine controller | Emerging Cross-Sectional Technologies | 35 | Expired |
| US6273056A | Control system for diesel engine during cold-engine warm-up | Emerging Cross-Sectional Technologies | 27 | Expired |
| US5964820A | Diesel engine exhaust recirculating system diagnostic | Emerging Cross-Sectional Technologies | 24 | Expired |
| US6962045B2 | Exhaust gas apparatus and method for purifying exhaust gas in internal combustion engine | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US7296561B2 | Engine control apparatus | Emerging Cross-Sectional Technologies | 20 | Expired |
| US6612292B2 | Fuel injection control for diesel engine | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5594488A | Thermal head | Performing Operations; Transporting | 16 | Expired |
| US4724182A | Thin film circuit substrate | Emerging Cross-Sectional Technologies | 15 | Expired |
| US7162860B2 | Diagnosis system of exhaust aftertreatment apparatus for internal combustion engine | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6412469B1 | Fuel injection control system for diesel engine | Emerging Cross-Sectional Technologies | 14 | Expired |
| US7043900B2 | Turbocharged engine control system | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5661513A | Thermal head | Performing Operations; Transporting | 12 | Expired |
| US6658847B2 | Control of supercharger | Emerging Cross-Sectional Technologies | 12 | Expired |
| US7107770B2 | Engine control device | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5617831A | Diesel engine startup controller | Emerging Cross-Sectional Technologies | 11 | Expired |
| US7208029B2 | Exhaust gas cleaning system | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6510692B2 | Control of supercharger | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6625985B2 | Control of turbocharger | Emerging Cross-Sectional Technologies | 9 | Expired |
| US7107760B2 | Exhaust gas purifying system for internal combustion engine | Emerging Cross-Sectional Technologies | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.