Akihisa Saito
38Patents
14h-index
35Co-inventors
81Inventor score
Filing activity: Mar 30, 1987 → Feb 28, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5544482A | Exhaust gas-purifying system for internal combustion engines | Emerging Cross-Sectional Technologies | 78 | Expired |
| US5302817A | X-ray detector and X-ray examination system utilizing fluorescent material | Physics | 33 | Expired |
| US6504156B1 | Ceramic scintillator material and manufacturing method thereof, and radiation detector therewith and radiation inspection apparatus therewith | Physics | 24 | Expired |
| US5634331A | Exhaust gas-purifying device for internal combustion engines | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5499501A | Engine exhaust emission control system | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5180319A | Joint structure with elastic mount | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US5713198A | Exhaust gas-purifying device for internal combustion engines | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5740675A | Exhaust system ambient temperature detection system for internal combustion engine | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5501073A | Ignition timing control system for internal combustion engines | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5758492A | Failure detection system of electrically heated catalytic converter of internal combustion engine | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5782086A | Failure detection system of exhaust secondary air supply system of internal combustion engine | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5467594A | Exhaust gas-purifying system for internal combustion engines | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6031213A | Electrode structure and electric heater comprising the same | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5784878A | Idle speed control system of internal combustion engine | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5584177A | Adsorber temperature-estimating device for internal combustion engines and exhaust gas-purifying system using same | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5689952A | Exhaust gas-purifying system for internal combustion engines | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5531203A | Catalyst activating system in multi-cylinder internal combustion engine | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5735121A | Air pump abnormality-detecting system for internal combustion engines | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5732550A | Current supply control system of electrically heated catalytic converter of internal combustion engine | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6392248B1 | Method and apparatus for color radiography, and color light emission sheet therefor | Physics | 10 | Expired |
| US5493857A | Exhaust gas-purifying system for internal combustion engines | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5857325A | Electrical load abnormality-detecting system for automotive vehicles | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5791140A | Exhaust gas-purifying system for internal combustion engines | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5600949A | Exhaust gas-purifying system for internal combustion engines | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5806307A | Exhaust gas-purifying system for internal combustion engines | Emerging Cross-Sectional Technologies | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.