Inventor

RAGUIN DANIEL H

US21 patents

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

RAGUIN DANIEL H

CORNING INC

Method for making optical microstructures having profile heights exceeding fifteen microns

Low-temperature fabrication of glass optical components

Collimator array and method and system for aligning optical fibers to a lens array

Metal-free gratings for wavelength-multiplexed optical communications

Methods of making structures from photosensitive coatings having profile heights exceeding fifteen microns

RAGUIN DANIEL H

Apparatus and method for two eye imaging for iris identification

Ambient light rejection for non-imaging contact sensors

Ambient light illumination for non-imaging contact sensors

CROSS MATCH TECH INC

System for presentation attack detection in an iris or face scanner

Fingerprint sensors

System, method, and apparatus for acquiring rolled-equivalent fingerprint images

STX APRILIS INC

Replication of data to holographic medium using holographic master media

Replication of data to holographic medium using holographic master media

Method and apparatus for azimuthal holographic multiplexing using elliptical reflector

APRILIS INC

Diffractive imaging system and method for the reading and analysis of skin topology

Acquisition of high resolution biometric images

CROSS MATCH TECHNOLOGIES INC

Fingerprint sensors

FULMER CHRISTOPHER R

System for capturing a biometric image in high ambient light environments

DCE APRILIS INC

Holographic data storage media with structured surfaces

HID GLOBAL CORP

Apparatus for directing presentation attack detection in biometric scanners

ZYZDRYN GRZEGORZ

Apparatus and method for determining sequencing of fingers in images to a two-finger scanner of fingerprint images