Yasushi Narita
21Patents
12h-index
29Co-inventors
77Inventor score
Filing activity: Jul 9, 1987 → Mar 5, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5231582A | Shifting control system for automotive automatic power transmission with enhanced variable shift pattern selection depending upon a resistance based upon vehicle acceleration and an engine parameter | Mechanical Engineering; Lighting; Heating | 37 | Expired |
| US4953090A | Hydraulic pressure control for reducing engagement shock of automatic transmission | Mechanical Engineering; Lighting; Heating | 34 | Expired |
| US5667458A | Lock-up control apparatus for automatic transmission | Mechanical Engineering; Lighting; Heating | 34 | Expired |
| US6157884A | Speed ratio control device and control method for automatic transmission | Mechanical Engineering; Lighting; Heating | 31 | Expired |
| US5304102A | Control for shift in automatic transmission | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US5005441A | Line pressure control for automatic transmission | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US4845618A | Hydraulic pressure control for reducing engagement shock of automatic transmission | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US4955259A | Line pressure control arrangement for automatic automotive transmission | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US6351700B1 | Speed change controller and control method of infinite speed ratio continuously variable transmission | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US5007308A | Line pressure control for automatic transmission | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US4970916A | Shift control system for automatic transmission | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US6569051B2 | Infinite speed ratio continuously variable transmission | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US6174261A | Speed controller and control methods of continuously variable transmission | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US6183390A | Speed ratio controller and control method of toroidal continuously variable transmission | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US6317672A | Controller for infinite speed ratio transmission | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US5241477A | Adaptive correction of inappropriate shift in automatic transmission | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US6666793B2 | Control of infinitely variable transmission | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US5075858A | Shift control system for automatic transmission | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US6142908A | Speed ratio controller and control method of continuously variable transmission | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US4972738A | Line pressure control arrangement for automatic automotive transmission | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US6599220B2 | Control of infinitely variable transmission | Emerging Cross-Sectional Technologies | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.