Koichi Hoshi
47Patents
12h-index
50Co-inventors
84Inventor score
Filing activity: Sep 4, 1974 → Apr 25, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5964088A | Device for purifying exhaust gas of engine | Emerging Cross-Sectional Technologies | 55 | Expired |
| US6122910A | Exhaust gas purifying apparatus for an internal combustion engine | Emerging Cross-Sectional Technologies | 50 | Expired |
| US6321530A | Exhaust gas purifier and method of purifying exhaust gas for a hybrid vehicle | Emerging Cross-Sectional Technologies | 41 | Expired |
| US6253547A | Apparatus and method for determining amount of unburned fuel component adsorbed by an adsorbent in an internal combustion engine | Emerging Cross-Sectional Technologies | 31 | Expired |
| US5979157A | Method and a device for purifying exhaust gas of an internal combustion engine | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4993392A | Apparatus for controlling heater for heating oxygen sensor | Mechanical Engineering; Lighting; Heating | 27 | Expired |
| US6321533A | Exhaust passage switching unit and method for internal combustion engine | Emerging Cross-Sectional Technologies | 22 | Expired |
| US6324893A | Diagnostic apparatus and method for adsorbent | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6857415B2 | Control system for internal combustion engine | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US6797517B1 | Catalyst degradation detecting device and method thereof in internal combustion engine | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5271223A | Exhaust gas purifying device of an engine | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6370872B1 | Exhaust gas purifier for internal combustion engine | Emerging Cross-Sectional Technologies | 14 | Expired |
| US7107759B2 | Apparatus for reducing hydrocarbon emission of internal combustion engine | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US7195008B2 | Cylinder-by-cylinder air-fuel ratio controller for internal combustion engine | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US9057331B2 | Control device for internal combustion engine | Emerging Cross-Sectional Technologies | 9 | Active |
| US6128898A | Exhaust gas purifying apparatus for internal combustion engine | Emerging Cross-Sectional Technologies | 9 | Expired |
| US7047727B2 | Rapid catalyst warm-up control device for internal combustion engine | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6401450B1 | Catalyst deterioration detector and method of detecting deterioration of catalyst | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5823163A | Intake air-flow control device for an internal combustion engine | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US10174699B2 | Exhaust gas purification system for an internal combustion engine | Emerging Cross-Sectional Technologies | 8 | Active |
| US4043309A | Internal combustion engine having auxiliary combustion chamber | Emerging Cross-Sectional Technologies | 6 | Expired |
| US7028673B2 | Evaporative fuel adsorption device | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US5509397A | Air supply system preventing backflow | Emerging Cross-Sectional Technologies | 6 | Expired |
| US8443588B2 | Control apparatus for internal combustion engine | Emerging Cross-Sectional Technologies | 5 | Active |
| US7654133B2 | Malfunction diagnostic apparatus and malfunction diagnostic method for combustion improvement device | Emerging Cross-Sectional Technologies | 5 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.