Kengo Kubo
12Patents
8h-index
15Co-inventors
65Inventor score
Filing activity: Oct 17, 1996 → Nov 25, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6263666A | Exhaust emission control device for internal combustion engine | Emerging Cross-Sectional Technologies | 32 | Expired |
| US5738184A | Muffler for a two-stroke engine | Emerging Cross-Sectional Technologies | 30 | Expired |
| US5857327A | Muffler for an internal combustion engine | Emerging Cross-Sectional Technologies | 29 | Expired |
| US5902971A | Muffler for internal combustion engine | Emerging Cross-Sectional Technologies | 27 | Expired |
| US5975862A | Portable power tool with vibration-proof member | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US5722237A | Muffler structure for internal combustion engine | Emerging Cross-Sectional Technologies | 22 | Expired |
| US6539709B2 | Exhaust gas purifying system of internal combustion engine | Emerging Cross-Sectional Technologies | 18 | Expired |
| US8341937B2 | Diagnostic apparatus for an exhaust gas purification system of an internal combustion engine, an exhaust gas purification system and a diagnostic method thereof | Emerging Cross-Sectional Technologies | 12 | Active |
| US6845749B2 | Start-up control device for engine | Emerging Cross-Sectional Technologies | 7 | Expired |
| US6691508B2 | Air-fuel ratio control system for internal combustion engine | Emerging Cross-Sectional Technologies | 3 | Expired |
| US9346463B2 | Mode switching control device for a hybrid vehicle | Emerging Cross-Sectional Technologies | 2 | Active |
| US7441520B2 | Valve-timing control apparatus of internal combustion engine | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.