Toshihiko Nara
10Patents
8h-index
26Co-inventors
68Inventor score
Filing activity: Nov 14, 1972 → Sep 10, 1991
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5086882A | Elevator apparatus provided with guiding device used for preventing passenger cage vibration | Performing Operations; Transporting | 41 | Expired |
| US5154261A | Electromagnetic disc brake for elevator lifting apparatus | Mechanical Engineering; Lighting; Heating | 37 | Expired |
| US5090515A | Passenger transport installation, vehicle for use therein, and method of operating said installation | Performing Operations; Transporting | 31 | Expired |
| US4117908A | Elevator having rope guide means | Performing Operations; Transporting | 21 | Expired |
| US4830146A | Fluid-pressure elevator | Performing Operations; Transporting | 19 | Expired |
| US3991856A | Elevator cable oscillation-absorbing device | Performing Operations; Transporting | 16 | Expired |
| US5193651A | Elevator apparatus | Performing Operations; Transporting | 12 | Expired |
| US5067593A | Braking device for elevator winding machine and elevator using the braking device | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US4775031A | Hydraulic elevator and control method thereof | Performing Operations; Transporting | 6 | Expired |
| US4846309A | Elevator hoisting apparatus | Emerging Cross-Sectional Technologies | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.