Hiroyuki Itoyama
41Patents
16h-index
38Co-inventors
81Inventor score
Filing activity: May 31, 1991 → Mar 7, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6083139A | Hybrid drive system for vehicle with clutch control | Emerging Cross-Sectional Technologies | 139 | Expired |
| US6233508A | Drive power control device for hybrid vehicle | Emerging Cross-Sectional Technologies | 65 | Expired |
| US6341584B1 | Valve timing control device and method for vehicle engine | Emerging Cross-Sectional Technologies | 59 | Expired |
| US6253127A | Engine startup control device and control method | Emerging Cross-Sectional Technologies | 56 | Expired |
| US6301529A | Driving apparatus and method for hybrid vehicle | Emerging Cross-Sectional Technologies | 51 | Expired |
| US6606981B2 | Diesel engine control | Emerging Cross-Sectional Technologies | 42 | Expired |
| US5168851A | Variable cam engine power controller | Emerging Cross-Sectional Technologies | 42 | Expired |
| US7107978B2 | Engine control system | Emerging Cross-Sectional Technologies | 39 | Expired |
| US5918582A | Integrated internal combustion engine control system with high-precision emission controls | Emerging Cross-Sectional Technologies | 35 | Expired |
| US6247311A | Diesel engine controller | Emerging Cross-Sectional Technologies | 35 | Expired |
| US6155954A | Engine output control device for hybrid vehicle | Emerging Cross-Sectional Technologies | 30 | Expired |
| US6230697A | Integrated internal combustion engine control system with high-precision emission controls | Emerging Cross-Sectional Technologies | 29 | Expired |
| US5152267A | Variable cam engine | Emerging Cross-Sectional Technologies | 26 | Expired |
| US6917873B2 | Control of multiple supercharged compression ignition engines having EGR | Emerging Cross-Sectional Technologies | 23 | Expired |
| US6032656A | Integrated internal combustion engine control system with high-precision emission controls | Emerging Cross-Sectional Technologies | 23 | Expired |
| US6962045B2 | Exhaust gas apparatus and method for purifying exhaust gas in internal combustion engine | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US6298299A | Control apparatus for internal combustion engine and estimation apparatus for estimating pressure in intake and discharge system of internal combustion engine | Emerging Cross-Sectional Technologies | 15 | Expired |
| US6170469A | Integrated internal combustion engine control system with high-precision emission controls | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6412469B1 | Fuel injection control system for diesel engine | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6701244B2 | Excess air factor control device for internal combustion engine | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6012431A | Control apparatus for internal combustion engine and estimation apparatus for estimating pressure in intake and discharge system of internal combustion engine | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5529043A | Signal processor | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US5115779A | Engine knock detecting system | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6502563B2 | Diesel engine control | Emerging Cross-Sectional Technologies | 11 | Expired |
| US7305828B2 | Engine boost pressure control | Emerging Cross-Sectional Technologies | 10 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.