Eitetsu Akiyama
26Patents
12h-index
40Co-inventors
77Inventor score
Filing activity: Jun 1, 1987 → Dec 1, 1999
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6138636A | Apparatus for controlling multi-cylinder internal combustion engine with partial cylinder switching-off mechanism | Emerging Cross-Sectional Technologies | 82 | Expired |
| US4977862A | Engine room-cooling control system | Emerging Cross-Sectional Technologies | 36 | Expired |
| US4977743A | Cooling control system for internal combustion engines equipped with superchargers | Emerging Cross-Sectional Technologies | 34 | Expired |
| US4930460A | Engine room-cooling control system | Emerging Cross-Sectional Technologies | 33 | Expired |
| US5241937A | Misfire-detecting system for internal combustion engines | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US5070847A | Method of detecting abnormality in fuel supply systems of internal combustion engines | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US6257176A | Variable cycle internal combustion engine and controller thereof | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US5419300A | Ignition coil unit with ignition voltage detective capacitor for internal combustion engine | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US5168952A | Driving wheel slip control system for vehicles | Performing Operations; Transporting | 21 | Expired |
| US5187935A | Engine control device | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5487676A | Spark plug cap with ignition voltage detective capacitor for internal combustion engine | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US5418461A | Device for detecting abnormality of spark plugs for internal combustion engines and a misfire-detecting system incorporating the same | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US5391100A | Method of manufacturing of spark plug cap with ignition voltage detective capacitor | Electricity | 10 | Expired |
| US6244258A | EGR controller for cylinder cut-off engine | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4964386A | Idling rotational speed control system for internal combustion engines after cranking | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US4844039A | Fuel supply control system for internal combustion engines | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US5031406A | Control system for boost pressure in internal combustion engine with turbocharger | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5012882A | Driving wheel slip control system for vehicles | Performing Operations; Transporting | 8 | Expired |
| US4739740A | Internal combustion engine air-fuel ratio feedback control method functioning to compensate for aging change in output characteristic of exhaust gas concentration sensor | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US4928489A | Supercharging pressure control method for turbocharged internal combustion engines | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5598821A | Misfire detection system for an internal combustion engine | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US4907409A | Supercharging pressure control method for internal combustion engines | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4891947A | Method of controlling supercharging pressure in internal combustion engines | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5065834A | Driving wheel slip control system having failsafe function | Performing Operations; Transporting | 2 | Expired |
| US5353769A | Fuel supply control system for internal combustion engines | Mechanical Engineering; Lighting; Heating | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.