Yasuhiro Urata
11Patents
9h-index
27Co-inventors
72Inventor score
Filing activity: Jun 15, 1988 → Apr 21, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4873949A | Method of and apparatus for controlling valve operation in an internal combustion engine | Mechanical Engineering; Lighting; Heating | 48 | Expired |
| US8396644B2 | Control device for internal combustion engine | Emerging Cross-Sectional Technologies | 27 | Active |
| US5193494A | Valve operating system for internal combustion engine | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US4889085A | Valve operating device for internal combustion engine | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US5195474A | Oil supply system in internal conbustion engine | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US7082898B2 | Internal combustion engine of compression ignition type | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US6817349B2 | Control system and method and engine control unit for compression ignition internal combustion engine | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4862843A | Valve timing control device for use in internal combustion engine | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5282443A | Valve operating system in internal combustion engine | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US5941213A | Control system for internal combustion engines | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US7751554B2 | Sound information providing system | Electricity | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.