Ryo Nihei
78Patents
19h-index
56Co-inventors
87Inventor score
Filing activity: Jun 25, 1980 → Mar 11, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD410477S | Industrial robot | General | 80 | Expired |
| US4479673A | Hand of an industrial robot | Performing Operations; Transporting | 55 | Expired |
| US4336926A | Workpiece manipulator | Performing Operations; Transporting | 44 | Expired |
| US5415057A | Balancer device for a robot arm | Emerging Cross-Sectional Technologies | 40 | Expired |
| US5341078A | Sliding mode control method for a machine having an operating section operatively coupled to a servomotor and wherein a switching variable is determined based on a torsion amount and a torsion speed | Physics | 31 | Expired |
| US5375480A | Cable laying arrangement for the robot arm unit of an industrial robot | Emerging Cross-Sectional Technologies | 31 | Expired |
| US8315735B2 | Production system having cooperating process area between human and robot | Physics | 30 | Active |
| US4416577A | Robot hand of an industrial robot | Emerging Cross-Sectional Technologies | 29 | Expired |
| US4637773A | Industrial robot of the articulated arm type | Emerging Cross-Sectional Technologies | 27 | Expired |
| US5216342A | Sliding mode control method with a feedforward compensation function | Physics | 27 | Expired |
| US4571694A | Robot control system | Emerging Cross-Sectional Technologies | 26 | Expired |
| US4482289A | Robot hand of an industrial robot | Performing Operations; Transporting | 26 | Expired |
| US4907467A | Structure of first arm of industrial robot having articulated horizontal arms | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4549846A | Automatic hand changing device for industrial robots | Emerging Cross-Sectional Technologies | 24 | Expired |
| US5511007A | Diagnostic method for a real time sensor mounted on a robot | Physics | 24 | Expired |
| US5593621A | Method of manufacturing plastic optical transmission medium | Performing Operations; Transporting | 24 | Expired |
| US6059169A | Spot welding system | Performing Operations; Transporting | 21 | Expired |
| US7445260B2 | Gripping type hand | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4970448A | Method of and apparatus for ascertaining motion abilities of industrial robot | Physics | 20 | Expired |
| US5442155A | Welding position detector with cooling and cleaning means | Physics | 19 | Expired |
| US4829840A | Industrial robot with replaceable module | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5588328A | Gear mechanism improved to remove backlash | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4828094A | Motion range limiting apparatus for industrial robots | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5466909A | Laser robot with approach time from origin to a starting position minimized | Physics | 16 | Expired |
| US5493192A | Abnormal load detection method | Performing Operations; Transporting | 15 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.