Hisashi Iida
73Patents
18h-index
81Co-inventors
87Inventor score
Filing activity: Oct 24, 1991 → Aug 14, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5317909A | Abnormality detecting apparatus for use in fuel transpiration prevention systems | Mechanical Engineering; Lighting; Heating | 73 | Expired |
| US6898927B2 | Emission control system with catalyst warm-up speeding control | Emerging Cross-Sectional Technologies | 57 | Expired |
| US5672817A | Self-diagnostic apparatus of air-fuel ratio control system of internal combustion engine | Mechanical Engineering; Lighting; Heating | 46 | Expired |
| US5711272A | Fuel property detection for an engine using engine speed | Emerging Cross-Sectional Technologies | 36 | Expired |
| US5852228A | Apparatus and method for controlling oxygen sensor heating | Mechanical Engineering; Lighting; Heating | 33 | Expired |
| US5419299A | Self-diagnosis apparatus and method for fuel evaporative emission | Mechanical Engineering; Lighting; Heating | 30 | Expired |
| US5806306A | Deterioration monitoring apparatus for an exhaust system of an internal combustion engine | Emerging Cross-Sectional Technologies | 28 | Expired |
| US5216991A | Internal combustion engine controller | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US6539707B2 | Exhaust emission control system for internal combustion engine | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US6032659A | Abnormality diagnosing system for air/fuel ratio feedback control system | Emerging Cross-Sectional Technologies | 24 | Expired |
| US7051725B2 | Cylinder-by-cylinder air-fuel ratio calculation apparatus for multi-cylinder internal combustion engine | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US5964208A | Abnormality diagnosing system for air/fuel ratio feedback control system | Emerging Cross-Sectional Technologies | 24 | Expired |
| US5259353A | Fuel evaporative emission amount detection system | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US5363832A | Fuel vapor purging control system with air/fuel ratio compensating system for internal combustion engine | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US5974857A | Apparatus and method for controlling oxygen sensor heating | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US6915203B2 | Apparatus and method for diagnosis of vehicular system | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5284050A | Self-diagnosis apparatus in system for prevention of scattering of fuel evaporation gas | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US6037391A | Water based dye ink composition for free ink rollerball pen | Chemistry; Metallurgy | 19 | Expired |
| US6338336B1 | Engine air-fuel ratio control with fuel vapor pressure-based feedback control feature | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US5727383A | Catalyst deterioration detecting apparatus and exhaust emission control device failure detecting apparatus | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5771688A | Air-fuel ratio control apparatus for internal combustion engines | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US5259355A | Gaseous fuel flow rate detecting system | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US5950606A | System for diagnosing fuel supply system of internal combustion engine | Emerging Cross-Sectional Technologies | 15 | Expired |
| US7107951B2 | Variable valve timing control device of internal combustion engine | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5758632A | Diagnostic apparatus for air-fuel ratio sensor | Mechanical Engineering; Lighting; Heating | 15 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.