Keiju Abo
33Patents
17h-index
15Co-inventors
78Inventor score
Filing activity: Feb 25, 1983 → May 3, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6243638A | Electronic transmission control system for automotive vehicle with continuously variable automatic transmission | Mechanical Engineering; Lighting; Heating | 193 | Expired |
| US4603602A | Method of controlling continuously variable transmission | Mechanical Engineering; Lighting; Heating | 65 | Expired |
| US4589071A | Method and apparatus for controlling reduction ratio of continuously variable transmission with acceleration compensation | Performing Operations; Transporting | 64 | Expired |
| US6009365A | Vehicle drive system controller and control method | Emerging Cross-Sectional Technologies | 60 | Expired |
| US4735113A | Creep torque and lock-up control for automatic transmission | Mechanical Engineering; Lighting; Heating | 52 | Expired |
| US4579021A | Method and apparatus for controlling line pressure in continuously variable transmission | Mechanical Engineering; Lighting; Heating | 39 | Expired |
| US6219608A | Electronic transmission control system for automotive vehicle with continuously variable automatic transmission | Mechanical Engineering; Lighting; Heating | 30 | Expired |
| US6253137A | Oil pressure supply device for vehicle drive system | Emerging Cross-Sectional Technologies | 28 | Expired |
| US5586953A | System for controlling a continuously variable transmission in response to a sensed wheel deceleration | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4597308A | Method and apparatus for controlling reduction ratio of continuously variable transmission | Performing Operations; Transporting | 27 | Expired |
| US4590561A | Method and apparatus for controlling reduction ratio of continuously variable transmission with accelerator pedal displacement speed compensation | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US6064161A | Vehicle drive device and vehicle drive device control method | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4576265A | Control system for hydraulic automatic clutch | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US4566354A | Method and apparatus for controlling reduction ratio of continuously variable transmission with engine coolant temperature compensation | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US4536171A | Method and apparatus for controlling continuously variable transmission | Performing Operations; Transporting | 19 | Expired |
| US4542665A | Control system for continuously variable transmission with space saving automatic clutch control | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US6122587A | Vehicle drive system controller and control method | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4764155A | Method of controlling continuously variable transmission | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US4533340A | Hydraulic control system for continuously variable V-belt transmission | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US4526557A | Method and apparatus for controlling a continuously variable transmission | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US4776829A | Power transmission belt | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US4583627A | Vehicle/engine operational parameter responsive clutch control | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US4545265A | Hydraulic control system for continuously variable V-belt transmission | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US4736655A | Apparatus for controlling reduction ratio in continuously variable transmission | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US4651776A | Fluid pressure control valve for hydraulic actuator | Emerging Cross-Sectional Technologies | 12 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.