Kyo Hattori
34Patents
12h-index
31Co-inventors
81Inventor score
Filing activity: Jan 24, 1975 → Mar 19, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4546338A | Rotary driving apparatus | Emerging Cross-Sectional Technologies | 27 | Expired |
| US4345228A | Rotary actuator | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4483369A | Linear motor-actuated flow control valve | Emerging Cross-Sectional Technologies | 22 | Expired |
| US4350319A | Control for an electromagnetic solenoid valve | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4696201A | Gear assembly for transmitting rotation between two shafts | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4119071A | Exhaust gas recirculating device in an internal combustion engine | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US4122818A | Oil circulating and cooling system | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US4428558A | Proportional solenoid | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4142676A | Bimetal valve | Physics | 14 | Expired |
| US4700669A | Intake device of an internal combustion engine | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4269028A | Secondary air supply system for the exhaust system of an internal combustion engine | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US4385491A | Engine mixture control system controlling primary and secondary air-fuel mixtures | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4496134A | Rotary solenoid actuator | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US4361164A | Method of driving solenoid-operated proportional control valve | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4530374A | Linear motor-actuated flow control valve | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4672939A | Intake manifold for internal combustion engine having exhaust gas recirculation system | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US4491815A | Rotary actuator | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US6660244B2 | Hydrogen generating system | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4375746A | Exhaust gas purifying method of an internal combustion engine | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US4561629A | Solenoid valve | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US4632082A | Device for driving a rotary valve | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4647009A | Electromagnetic rotary driving device | Electricity | 8 | Expired |
| US4535815A | Electromagnetic solenoid type flow control valve | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4442997A | Flow control valve apparatus | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US4211074A | Secondary air supply system for the exhaust system of an internal combustion engine | Mechanical Engineering; Lighting; Heating | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.