Eiichi Kamiyama
42Patents
6h-index
22Co-inventors
69Inventor score
Filing activity: Nov 20, 1995 → Mar 20, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5630387A | Intake manifold | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US7278383B2 | Internal combustion engine with variable compression ratio and valve characteristics | Emerging Cross-Sectional Technologies | 14 | Active |
| US7036468B2 | Internal combustion engine with variable compression ratio and compression ratio control method | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US7917279B2 | Method of controlling a mechanical compression ratio, a closing timing of an intake valve and air stream | Emerging Cross-Sectional Technologies | 8 | Active |
| US7047917B2 | Variable compression ratio mechanism | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US7997241B2 | Spark ignition type internal combustion engine | Emerging Cross-Sectional Technologies | 6 | Active |
| US7840335B2 | Internal combustion engine with variable compression ratio | Emerging Cross-Sectional Technologies | 6 | Active |
| US5687690A | Motor vehicle drive device | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US7882821B2 | Spark ignition type internal combustion engine | Emerging Cross-Sectional Technologies | 5 | Active |
| US7802543B2 | Spark ignition type internal combustion engine | Emerging Cross-Sectional Technologies | 5 | Active |
| US10514081B2 | Balance device for internal combustion engine | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US7721688B2 | Variable compression ratio internal combustion engine | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US7487747B2 | Mount apparatus for variable compression ratio internal combustion engine | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US6871626B2 | Foamed resin oil pan and method of fabrication thereof | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US8869772B2 | Engine control apparatus | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US7627417B2 | Variable compression ratio internal combustion engine | Emerging Cross-Sectional Technologies | 3 | Active |
| US7806092B2 | Drive device mounted in vehicle body which includes variable compression ratio internal combustion engine | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US8234054B2 | Method of operating a spark ignition type internal combustion engine | Emerging Cross-Sectional Technologies | 3 | Active |
| US8413618B2 | Spark ignition type internal combustion engine | Emerging Cross-Sectional Technologies | 3 | Active |
| US8646419B2 | Control apparatus for internal combustion engine | Emerging Cross-Sectional Technologies | 2 | Active |
| US8342143B2 | Spark ignition type internal combustion engine | Emerging Cross-Sectional Technologies | 2 | Active |
| US8122860B2 | Variable compression ratio internal combustion engine | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US8985070B2 | Variable compression ratio V-type internal combustion engine | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US8695544B2 | High expansion ratio internal combustion engine | Emerging Cross-Sectional Technologies | 2 | Active |
| US8322315B2 | Spark ignition type internal combustion engine | Emerging Cross-Sectional Technologies | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.