Kiyoshi Nakanishi
75Patents
20h-index
122Co-inventors
91Inventor score
Filing activity: Aug 22, 1977 → Jul 9, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5473887A | Exhaust purification device of internal combustion engine | Emerging Cross-Sectional Technologies | 198 | Expired |
| US5412946A | NOx decreasing apparatus for an internal combustion engine | Emerging Cross-Sectional Technologies | 152 | Expired |
| US5473890A | Exhaust purification device of internal combustion engine | Emerging Cross-Sectional Technologies | 109 | Expired |
| US5483795A | Exhaust purification device of internal combustion engine | Emerging Cross-Sectional Technologies | 100 | Expired |
| US5412945A | Exhaust purification device of an internal combustion engine | Emerging Cross-Sectional Technologies | 88 | Expired |
| US5174111A | Exhaust gas purification system for an internal combustion engine | Mechanical Engineering; Lighting; Heating | 78 | Expired |
| US4982716A | Fuel injection valve with an air assist adapter for an internal combustion engine | Mechanical Engineering; Lighting; Heating | 71 | Expired |
| US6519933B2 | Internal combustion engine having variable valve control system and NOx catalyst | Emerging Cross-Sectional Technologies | 45 | Expired |
| US4667636A | Fuel injection type internal combustion engine | Emerging Cross-Sectional Technologies | 37 | Expired |
| US7652693B2 | Portable telephone capable of recording a composite image | Electricity | 33 | Expired |
| US4162661A | Internal combustion engine with combustion chambers which create a squish and swirl of an air-fuel mixture | Emerging Cross-Sectional Technologies | 31 | Expired |
| US4312309A | Helically-shaped intake port of an internal combustion engine | Emerging Cross-Sectional Technologies | 27 | Expired |
| US4840740A | Grease for homokinetic joint | Chemistry; Metallurgy | 26 | Expired |
| US4506632A | Piston assembly with cooling lubricant reservoir defining member engaged to piston pin mounting bosses | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US5525953A | Multi-plate type high frequency parallel strip-line cable comprising circuit device part integratedly formed in dielectric body of the cable | Electricity | 22 | Expired |
| US4300499A | Combustion chamber of an internal combustion engine | Emerging Cross-Sectional Technologies | 22 | Expired |
| US4271803A | Internal combustion engine | Emerging Cross-Sectional Technologies | 22 | Expired |
| US4212270A | Cooling system for an internal combustion engine | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US4411226A | Intake system for an internal combustion engine | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4499868A | Intake device of an internal combustion engine | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4182279A | Combustion chamber of an internal combustion engine | Emerging Cross-Sectional Technologies | 20 | Expired |
| US7583316B2 | Digital camera and mobile telephone having digital camera | Electricity | 18 | Expired |
| US4438741A | Device for controlling a flow in a helical type intake port | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4682577A | Method and apparatus for reducing NOx in internal combustion engine | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US4550699A | Intake device of an internal combustion engine | Emerging Cross-Sectional Technologies | 15 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.