Inventor

HAMMOND ROBERT B

US63 patents

⚠️ This page may combine multiple inventors who share the name “HAMMOND ROBERT B”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HAMMOND ROBERT B

RESONANT INC

XBAR resonators with non-rectangular diaphragms

Bandpass filter with frequency separation between shunt and series resonators set by dielectric layer thickness

Transversely-excited film bulk acoustic resonator

Solidly-mounted transversely-excited film bulk acoustic resonator

Transversely-excited film bulk acoustic resonator

Transversely-excited film bulk acoustic resonator with multiple diaphragm thicknesses and fabrication method

Solidly-mounted transversely-excited film bulk acoustic resonator

Film bulk acoustic resonator fabrication method

Transversely-excited film bulk acoustic resonator

Film bulk acoustic resonator fabrication method with frequency trimming based on electric measurements prior to cavity etch

Network synthesis design of microwave acoustic wave filters

Transversely-excited film bulk acoustic resonator with a cavity having a curved perimeter

Network synthesis design of microwave acoustic wave filters

Network synthesis design of microwave acoustic wave filters

Network synthesis design of microwave acoustic wave filters

Network synthesis design of microwave acoustic wave filters

Network synthesis design of microwave acoustic wave filters

Network synthesis design of microwave acoustic wave filters

MURATA MANUFACTURING CO

XBAR resonators with non-rectangular diaphragms

Transversely-excited film bulk acoustic resonator with multiple diaphragm thicknesses and fabrication method

Transversely-excited film bulk acoustic resonator with optimized piezoelectric plate thickness and electrode mark and pitch

Acoustic resonators with high acoustic velocity layers

Transversely-excited film bulk acoustic resonator with optimized electrode thickness, mark, and pitch

Transversely-excited film bulk acoustic resonator with optimized electrode thickness, mark, and pitch

Transversely-excited film bulk acoustic resonator with optimized piezoelectric plate thickness and having multiple pitches and marks

Transversely-excited film bulk acoustic resonator with a front-side dielectric layer and optimized pitch and mark

Film bulk acoustic resonator fabrication method

Transversely-excited film bulk acoustic resonator with optimized electrode thickness, mark, and pitch

Transversely-excited film bulk acoustic resonator with optimized electrode mark, and pitch

Transversely-excited film bulk acoustic resonator with optimized electrode thickness, mark, and pitch

XBAR resonators with non-rectangular diaphragms

Solidly-mounted transversely-excited film bulk acoustic resonator

Transversely-excited film bulk acoustic resonator with a cavity having round end zones

Filters using transversly-excited film bulk acoustic resonators with frequency-setting dielectric layers

Solidly-mounted transversely-excited film bulk acoustic resonator

Transversely-excited film bulk acoustic resonator

SUPERCONDUCTOR TECH

Tunable superconducting resonator and methods of tuning thereof

Tunable superconducting resonator and methods of tuning thereof

Filter with improved intermodulation distortion characteristics and methods of making the improved filter

Metalorganic deposition method for forming epitaxial thallium-based copper oxide superconducting films

Epitaxial thin superconducting thallium-based copper oxide layers

Superconducting devices having a variable conductivity device for introducing energy loss

RESONANT LLC

Microwave acoustic wave filters

Network synthesis design of microwave acoustic wave filters

Microwave acoustic wave filters

Network synthesis design of microwave acoustic wave filters

US ENERGY

Polysilicon photoconductor for integrated circuits

Polysilicon photoconductor for integrated circuits

Laser beam alignment apparatus and method

InP:Fe Photoconducting device