Alexandre Augusto Shirakawa
38Patents
10h-index
45Co-inventors
71Inventor score
Filing activity: Jan 15, 2008 → Mar 12, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8575820B2 | Stacked bulk acoustic resonator | Electricity | 38 | Active |
| US9401692B2 | Acoustic resonator having collar structure | Electricity | 28 | Active |
| US9154111B2 | Double bulk acoustic resonator comprising aluminum scandium nitride | Electricity | 28 | Active |
| US8330325B1 | Bulk acoustic resonator comprising non-piezoelectric layer | Electricity | 26 | Active |
| US8508315B2 | Acoustically coupled resonator filter with impedance transformation ratio controlled by resonant frequency difference between two coupled resonators | Emerging Cross-Sectional Technologies | 24 | Active |
| US7868517B2 | Lamb wave resonator | Electricity | 20 | Active |
| US8796904B2 | Bulk acoustic resonator comprising piezoelectric layer and inverse piezoelectric layer | Electricity | 17 | Active |
| US9148117B2 | Coupled resonator filter comprising a bridge and frame elements | Electricity | 14 | Active |
| US9048812B2 | Bulk acoustic wave resonator comprising bridge formed within piezoelectric layer | Electricity | 12 | Active |
| US8350445B1 | Bulk acoustic resonator comprising non-piezoelectric layer and bridge | Electricity | 10 | Active |
| US9571064B2 | Acoustic resonator device with at least one air-ring and frame | Electricity | 9 | Active |
| US9083302B2 | Stacked bulk acoustic resonator comprising a bridge and an acoustic reflector along a perimeter of the resonator | Electricity | 8 | Active |
| US9136818B2 | Stacked acoustic resonator comprising a bridge | Electricity | 7 | Active |
| US9401691B2 | Acoustic resonator device with air-ring and temperature compensating layer | Electricity | 7 | Active |
| US9203374B2 | Film bulk acoustic resonator comprising a bridge | Electricity | 7 | Active |
| US9917567B2 | Bulk acoustic resonator comprising aluminum scandium nitride | Electricity | 6 | Active |
| US9490771B2 | Acoustic resonator comprising collar and frame | Electricity | 6 | Active |
| US8872604B2 | Double film bulk acoustic resonators with electrode layer and piezo-electric layer thicknesses providing improved quality factor | Electricity | 5 | Active |
| US11581869B2 | Bulk acoustic wave resonator with mass loading layer | Electricity | 5 | Active |
| US9548438B2 | Acoustic resonator comprising acoustic redistribution layers | Electricity | 4 | Active |
| US8665038B2 | Bulk acoustic wave resonator filter being digitally reconfigurable, with process | Electricity | 3 | Active |
| US12101077B2 | Bulk acoustic wave device with raised frame structure | Electricity | 3 | Active |
| US12021506B2 | Bulk acoustic wave resonators with patterned mass loading layers | Electricity | 3 | Active |
| US12088278B2 | Bulk acoustic wave resonator with patterned mass loading layer and recessed frame | Electricity | 2 | Active |
| US10128813B2 | Bulk acoustic wave (BAW) resonator structure | Electricity | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.