Yuji Nishikawa
31Patents
9h-index
32Co-inventors
75Inventor score
Filing activity: Jun 14, 1988 → Mar 18, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5179329A | Travel control method, travel control device, and mobile robot for mobile robot systems | Emerging Cross-Sectional Technologies | 226 | Expired |
| US5568030A | Travel control method, travel control device, and mobile robot for mobile robot systems | Emerging Cross-Sectional Technologies | 171 | Expired |
| US6934309B2 | Two-dimensional laser diode array light-emitting device | Electricity | 76 | Expired |
| US5488277A | Travel control method, travel control device, and mobile robot for mobile robot systems | Emerging Cross-Sectional Technologies | 70 | Expired |
| US4939650A | Path correction method for a self-contained unmanned vehicle | Physics | 43 | Expired |
| US6643302B1 | Cooling device and surface emitting device comprising same | Electricity | 34 | Expired |
| US4982329A | Self-contained unmanned vehicle | Physics | 30 | Expired |
| US6097744A | Cooling device of a planar light source | Emerging Cross-Sectional Technologies | 20 | Expired |
| US6865200B2 | Cooling device | Electricity | 14 | Expired |
| US6387286B1 | Cooling device of a planar light source | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6266881A | Method of making a cooling device of a planar light source | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5650611A | Light switching method, light switching apparatus and optical semiconductor device | Physics | 4 | Expired |
| US9248524B2 | Method and system for laser drilling | Performing Operations; Transporting | 4 | Active |
| US6850549B2 | Light source device for pumping solid-state laser medium | Electricity | 4 | Expired |
| US6245589A | Fabrication of cooling device of a planar light source | Emerging Cross-Sectional Technologies | 3 | Expired |
| US8428092B2 | High-power laser unit wherein laser output can be accurately corrected | Electricity | 3 | Active |
| US11479209B2 | Input information management system | Electricity | 1 | Active |
| US10785454B2 | Display control device and computer-readable storage medium for a vehicle | Physics | 1 | Active |
| US10461488B2 | Laser device provided with function of predicting occurrence of condensation | Electricity | 1 | Active |
| US8447467B2 | Method and system for automatically locking doors of vehicle | Physics | 1 | Active |
| US8135051B2 | Gas laser oscillator | Electricity | 1 | Active |
| US10997853B2 | Control device and computer readable storage medium | Physics | 0 | Active |
| US11393262B2 | Vehicle management system, vehicle management program, and vehicle management method | Emerging Cross-Sectional Technologies | 0 | Active |
| US11138815B2 | Vehicle management system | Physics | 0 | Active |
| US10302194B2 | Shift change practice device | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.