Yasuki Tamura
32Patents
12h-index
43Co-inventors
77Inventor score
Filing activity: Aug 19, 1992 → Jul 1, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6968677B2 | Exhaust emission control apparatus for internal combustion engine | Emerging Cross-Sectional Technologies | 55 | Expired |
| US6463734B1 | Exhaust emission control device of internal combustion engine | Emerging Cross-Sectional Technologies | 47 | Expired |
| US5979413A | Cylinder judging device for internal combustion engine | Mechanical Engineering; Lighting; Heating | 37 | Expired |
| US6711892B2 | Exhaust gas purifier for internal combustion engines | Emerging Cross-Sectional Technologies | 28 | Expired |
| US5722363A | Cylinder-injection type internal combustion engine and a fuel injection control apparatus therefor | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US7216479B2 | Exhaust emission control system for vehicle internal combustion engine | Emerging Cross-Sectional Technologies | 22 | Expired |
| US6892527B2 | Catalyst deterioration suppressing apparatus and method | Emerging Cross-Sectional Technologies | 21 | Expired |
| US7051689B2 | Failure diagnostic system for exhaust pressure increasing device | Emerging Cross-Sectional Technologies | 20 | Expired |
| US6644021B2 | Exhaust gas purifying apparatus of internal combustion engine | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5417190A | Stratified burning internal combustion engine | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5270575A | Device for controlling change in idling | Electricity | 14 | Expired |
| US5483939A | Control system for lean-burn internal combustion engine | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US6751949B2 | Exhaust emission control device of internal-combustion engine | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6672051B2 | Exhaust emission purifying device for internal combustion engine | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6487851B1 | Exhaust emission control device of internal combustion engine | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6718756B1 | Exhaust gas purifier for use in internal combustion engine | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5295464A | Stratified burning internal combustion engine | Emerging Cross-Sectional Technologies | 10 | Expired |
| US7275367B2 | Exhaust pressure-raising device for an internal combustion engine | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6976356B2 | Exhaust gas purifier for use in internal combustion engine | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6558637B2 | Exhaust emission purifier | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6532733B1 | Plasma exhaust gas treatment device | Performing Operations; Transporting | 5 | Expired |
| US6817172B2 | Exhaust purifying apparatus for an internal combustion engine and a failure prevention method therefor | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6892528B2 | Catalyst deterioration detecting apparatus | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5423300A | Internal combustion engine | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6729123B2 | Exhaust purification device for intracylindrical injection-type spark-ignition internal combustion engine | Emerging Cross-Sectional Technologies | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.