Imaging devices having piezoelectric transceivers
S Akkaraju, H Kwon, B Bircumshaw - US Patent 11,313,717, 2022 - Google Patents
A micromachined ultrasonic transducer (MUT). The MUT includes: a substrate; a membrane
suspending from the substrate; a bottom electrode disposed on the membrane; a …
suspending from the substrate; a bottom electrode disposed on the membrane; a …
Increased MUT coupling efficiency and bandwidth via edge groove, virtual pivots, and free boundaries
BL Bircumshaw, S Akkaraju, H Kwon - US Patent 11,794,209, 2023 - Google Patents
US11794209B2 - Increased MUT coupling efficiency and bandwidth via edge groove,
virtual pivots, and free boundaries - Google Patents US11794209B2 - Increased MUT …
virtual pivots, and free boundaries - Google Patents US11794209B2 - Increased MUT …
System and method for controlling an ultrasonic tool
AD Downey - US Patent 11,337,718, 2022 - Google Patents
Abstract Systems (10) and methods (12) of controlling an ultrasonic surgical tool (20) with a
console (22) are provided. A first drive signal (40) is applied to the ultrasonic surgical tool …
console (22) are provided. A first drive signal (40) is applied to the ultrasonic surgical tool …
Energy harvesting systems, apparatus, and methods
D Hollander, M Haghighatian, R Tatum… - US Patent App. 15 …, 2016 - Google Patents
BACKGROUND 0002. Often, a mobile device user will find themselves in an environment
where power (and/or an electrical outlet, adapter, etc.) to charge a device is not available …
where power (and/or an electrical outlet, adapter, etc.) to charge a device is not available …
System and method for controlling an ultrasonic tool
AD Downey - US Patent 11,723,683, 2023 - Google Patents
Abstract Systems (10) and methods (12) of controlling an ultrasonic surgical tool (20) with a
console (22) are provided. A first drive signal (40) is applied to the ultrasonic surgical tool …
console (22) are provided. A first drive signal (40) is applied to the ultrasonic surgical tool …
Imaging devices having piezoelectric transceivers with harmonic characteristics
H Kwon, B Bircumshaw, S Akkaraju - US Patent 11,819,881, 2023 - Google Patents
A micromachined ultrasonic transducer (MUT) which comprises a first piezoelectric layer
and a second piezoelectric layer. The first piezoelectric layer is disposed between a first …
and a second piezoelectric layer. The first piezoelectric layer is disposed between a first …
Imaging devices having piezoelectric transceivers with harmonic characteristics
H Kwon, B Bircumshaw, S Akkaraju - US Patent 11,975,360, 2024 - Google Patents
Described are micromachined ultrasonic transducers (MUTs) with convex or concave
electrodes, which have enhanced pressure amplitude and frequency response behavior …
electrodes, which have enhanced pressure amplitude and frequency response behavior …
Imaging devices having piezoelectric transceivers with harmonic characteristics
H Kwon, B Bircumshaw, S Akkaraju - US Patent 11,951,512, 2024 - Google Patents
Described are micromachined ultrasonic transducers (MUTs) with convex or concave
electrodes, which have enhanced pressure amplitude and frequency response behavior …
electrodes, which have enhanced pressure amplitude and frequency response behavior …
Imaging devices having piezoelectric transceivers
S Akkaraju, H Kwon, B Bircumshaw - US Patent 11,774,280, 2023 - Google Patents
A micromachined ultrasonic transducer (MUT). The MUT includes: a substrate; a membrane
suspending from the substrate; a bottom electrode disposed on the membrane; a …
suspending from the substrate; a bottom electrode disposed on the membrane; a …
Asymmetrical ultrasound transducer array
S Akkaraju, H Kwon, B Bircumshaw - US Patent 12,000,728, 2024 - Google Patents
An array of micromachined ultrasonic transducers (MUTs). The array has first and second
rows, the MUTs in the first row being equally spaced by a horizontal pitch in a horizontal …
rows, the MUTs in the first row being equally spaced by a horizontal pitch in a horizontal …