Kojiro Okada
19Patents
9h-index
40Co-inventors
68Inventor score
Filing activity: Jun 13, 1995 → Nov 7, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5657625A | Apparatus and method for internal combustion engine control | Emerging Cross-Sectional Technologies | 175 | Expired |
| US6711892B2 | Exhaust gas purifier for internal combustion engines | Emerging Cross-Sectional Technologies | 28 | Expired |
| US6892527B2 | Catalyst deterioration suppressing apparatus and method | Emerging Cross-Sectional Technologies | 21 | Expired |
| US6644021B2 | Exhaust gas purifying apparatus of internal combustion engine | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6487851B1 | Exhaust emission control device of internal combustion engine | Emerging Cross-Sectional Technologies | 12 | Expired |
| US7730721B2 | Exhaust gas purification device of internal combustion engine | Emerging Cross-Sectional Technologies | 10 | Active |
| US6718756B1 | Exhaust gas purifier for use in internal combustion engine | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5694901A | Method for the determination of rough road in vehicle with internal combustion engine mounted thereon | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US5778856A | Control device and control method for lean-burn engine | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US5813386A | Control device and control method for lean-burn engine | Mechanical Engineering; Lighting; Heating | 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 |
| US6892528B2 | Catalyst deterioration detecting apparatus | Emerging Cross-Sectional Technologies | 5 | Expired |
| US7971428B2 | Exhaust gas purification device for internal combustion engine | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US6196180A | In-cylinder injection type spark ignition internal combustion engine | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5517970A | Fuel feeding system and method for internal combustion engine | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US6558636B2 | Plasma type exhaust gas cleaning apparatus | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US6382178B2 | In-cylinder injection type spark ignition internal combustion engine | Emerging Cross-Sectional Technologies | 1 | Expired |
| US7874145B2 | Emmision control device for internal combustion engine | Emerging Cross-Sectional Technologies | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.