Kiyoshi Ohnuma
8Patents
7h-index
8Co-inventors
45Inventor score
Filing activity: Nov 21, 1975 → Apr 27, 1977
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4056988A | Driving system for use in motor vehicle | Mechanical Engineering; Lighting; Heating | 49 | Expired |
| US4095486A | Device for controlling a lock-up clutch in an automatic transmission | Mechanical Engineering; Lighting; Heating | 33 | Expired |
| US4051932A | Fluid pressure control system for a hydraulic transmission with a lock-up clutch | Mechanical Engineering; Lighting; Heating | 32 | Expired |
| US4044556A | Hydraulic torque converter with a lock-up clutch | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US4043223A | Overdrive mechanism for automatic power transmission | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US4108022A | Device for controlling the speed shift operation of an automatic transmission | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US4108289A | Hydraulic coupling with a lock-up clutch | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US4152957A | Automatic transmission with an overdrive means | Emerging Cross-Sectional Technologies | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.