Masao Nishikawa
101Patents
22h-index
48Co-inventors
90Inventor score
Filing activity: Aug 6, 1975 → Nov 20, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5221883A | System for controlling locomotion of legged walking robot | Performing Operations; Transporting | 128 | Expired |
| US4183509A | Shock absorber for vehicle use | Performing Operations; Transporting | 111 | Expired |
| US5913375A | Vehicle steering force correction system | Physics | 111 | Expired |
| US5151859A | Legged walking robot and system for controlling the same | Performing Operations; Transporting | 108 | Expired |
| US5432417A | Locomotion control system for legged mobile robot | Performing Operations; Transporting | 108 | Expired |
| US5455497A | Legged mobile robot and a system for controlling the same | Performing Operations; Transporting | 87 | Expired |
| US5737217A | System for detecting and controlling the position of a mobile robot | Physics | 68 | Expired |
| US5416393A | Legged mobile robot foot structure | Performing Operations; Transporting | 67 | Expired |
| US6053270A | Steering angle correcting system in vehicle | Performing Operations; Transporting | 58 | Expired |
| US5255753A | Foot structure for legged walking robot | Performing Operations; Transporting | 51 | Expired |
| US5159988A | Articulated structure for legged walking robot | Performing Operations; Transporting | 47 | Expired |
| US6092619A | Steering assist system in a vehicle | Performing Operations; Transporting | 42 | Expired |
| US4345661A | Anti-roll system for vehicles | Performing Operations; Transporting | 42 | Expired |
| US4422662A | Front fork construction for motorcycle | Performing Operations; Transporting | 36 | Expired |
| US4628317A | Inter-vehicle distance control system for vehicles | Physics | 36 | Expired |
| US6889057B2 | PDA cradle for wireless IP communication | Electricity | 29 | Expired |
| US6021363A | System for detecting and controlling the position of a mobile robot | Physics | 26 | Expired |
| US4513638A | Control mechanism for selective creep of an automatic transmission | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US5445235A | Legged mobile robot equipped with impact absorber | Performing Operations; Transporting | 25 | Expired |
| US4628772A | Back-up device for an electronic control system of an automatic transmission | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4680928A | Warm-up promotion device for automatic transmission | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US4191852A | Stereophonic sense enhancing apparatus | Electricity | 22 | Expired |
| US4959958A | Hydraulic pressure system | Performing Operations; Transporting | 22 | Expired |
| US4516671A | Control apparatus for a torque convertor clutch | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US4688530A | Control system for engine-operated automotive accessories | Mechanical Engineering; Lighting; Heating | 20 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.