Hiroshi Yasaka
4Patents
2h-index
15Co-inventors
45Inventor score
Filing activity: Mar 13, 1990 → Mar 23, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5155737A | Semiconductor wavelength conversion device | Electricity | 19 | Expired |
| US5025448A | Method and apparatus for stabilizing frequency of semiconductor laser | Electricity | 8 | Expired |
| US11539185B2 | Laser apparatus | Electricity | 0 | Active |
| US11881677B2 | Laser light source | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.