Kiyoshi Kobashi
34Patents
17h-index
45Co-inventors
81Inventor score
Filing activity: Nov 7, 1975 → Aug 6, 1997
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5473887A | Exhaust purification device of internal combustion engine | Emerging Cross-Sectional Technologies | 198 | Expired |
| US5908480A | Particulate trap for diesel engine | Emerging Cross-Sectional Technologies | 114 | Expired |
| US4934142A | Exhaust emission control device for a diesel engine | Emerging Cross-Sectional Technologies | 106 | Expired |
| US5406790A | Exhaust gas purification device for an engine | Emerging Cross-Sectional Technologies | 80 | Expired |
| US4916897A | Exhaust gas purifying apparatus built-in to a muffler for a diesel engine | Emerging Cross-Sectional Technologies | 76 | Expired |
| US4404795A | Method of and apparatus for reducing emitted amount of particulates contained in exhaust gas of diesel engine | Emerging Cross-Sectional Technologies | 69 | Expired |
| US4161929A | Exhaust gas recirculation control system for an internal combustion engine | Emerging Cross-Sectional Technologies | 53 | Expired |
| US4452040A | Soot catcher purgative diesel engine fuel supply method and apparatus | Emerging Cross-Sectional Technologies | 40 | Expired |
| US4485622A | Exhaust gas cleaning device for internal combustion engine | Emerging Cross-Sectional Technologies | 40 | Expired |
| US5961931A | Particulate trap | Emerging Cross-Sectional Technologies | 34 | Expired |
| US4875336A | Exhaust gas emission control device for diesel engine | Emerging Cross-Sectional Technologies | 30 | Expired |
| US5863311A | Particulate trap for diesel engine | Emerging Cross-Sectional Technologies | 26 | Expired |
| US4386497A | Exhaust gas cleaning device for internal combustion engine | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4164032A | Computer control of an exhaust gas recirculation device for an internal combustion engine | Emerging Cross-Sectional Technologies | 25 | Expired |
| US5930995A | Exhaust gas purification device for a compression-ignition combustion engine | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4549398A | Exhaust gas cleaning device for diesel engines | Emerging Cross-Sectional Technologies | 22 | Expired |
| US4723973A | Purifying apparatus of a particulate trap-type for collecting particulates in exhaust gas from an engine | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4191144A | Method for controlling ignition timing in an internal combustion engine | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4056933A | Exhaust gas purifier in an internal combustion engine | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US4171691A | Exhaust gas recirculation control system for an internal combustion engine | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4404798A | Exhaust gas cleaning device for internal combustion engine | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5826427A | Compression ignition type engine | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4299600A | Trapper device for collecting and incinerating fine particulates included in exhaust gas from a diesel engine | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5851249A | Particulate trap for a diesel engine | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4257382A | Electronic control system for internal combustion engines | Emerging Cross-Sectional Technologies | 11 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.