Yutaka Uematsu
91Patents
8h-index
115Co-inventors
81Inventor score
Filing activity: Mar 10, 1978 → Jul 19, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4893313A | Semiconductor laser device which has a double-hetero structure having an optimal layer thickness | Electricity | 21 | Expired |
| US5113469A | Optical wavelength-converting device for guided-wave second-harmonic generation in Cerenkov radiation mode | Physics | 20 | Expired |
| US4176367A | Semiconductor optical device | Electricity | 19 | Expired |
| US5065404A | Transverse-mode oscillation semiconductor laser device | Electricity | 17 | Expired |
| US6688279B2 | Compression-ignition internal combustion engine | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5036521A | Semiconductor laser device | Electricity | 14 | Expired |
| US4194162A | Semiconductor device | Electricity | 12 | Expired |
| US6725832B2 | EGR control apparatus for internal combustion engine | Emerging Cross-Sectional Technologies | 8 | Expired |
| US10763214B2 | Semiconductor device | Electricity | 8 | Active |
| US5377291A | Wavelength converting optical device | Physics | 8 | Expired |
| US7187069B2 | Semiconductor device | Electricity | 8 | Expired |
| US4733225A | Cooling medium temperature monitoring system for rotary electric machine | Electricity | 8 | Expired |
| US9569144B2 | DRAM with SDRAM interface, and hybrid flash memory module | Physics | 7 | Active |
| US7768867B2 | Stacked semiconductor device | Electricity | 6 | Active |
| US10794465B2 | Electric actuator | Electricity | 6 | Active |
| US7852145B2 | Semiconductor device having power supply system | Electricity | 6 | Active |
| US7447038B2 | Module | Electricity | 5 | Active |
| US7939907B2 | Semiconductor device including a digital semiconductor element and an analog semiconductor element in a common semiconductor device | Electricity | 5 | Active |
| US9475361B2 | Vehicle heating and air conditioning system | Performing Operations; Transporting | 4 | Active |
| US9328945B2 | Air conditioner for vehicle | Emerging Cross-Sectional Technologies | 4 | Active |
| US7957150B2 | Support method and apparatus for printed circuit board | Electricity | 3 | Active |
| US7168242B2 | NOx catalyst regeneration method for NOx purifying system and NOx purifying system | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US10715003B2 | Electric actuator | Electricity | 3 | Active |
| US7990228B2 | Semiconductor device and wiring part thereof | Electricity | 3 | Active |
| US10541216B2 | Semiconductor device | Electricity | 3 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.