Company Filing History:
3 out of 1,012 
1 out of 8 Years Active: 1995-2003
Title: The Innovative Contributions of Daniel Levesque
Introduction
Daniel Levesque is a notable inventor based in Terrebonne, CA, recognized for his significant contributions to the field of ultrasonics. With a total of four patents to his name, Levesque has developed methods and systems that enhance the evaluation and imaging of physical properties in materials.
Latest Patents
Levesque's latest patents include an "Apparatus and method for evaluating the physical properties of a sample using ultrasonics." This method involves generating an ultrasound field in a sample using a non-contact source, such as a pulsed laser. The ultrasound diffuses away from the local region, and after reaching a diffusion regime, the field is measured with a non-contact detector. This innovative approach allows for the estimation of parameters like the diffusion coefficient and absorption coefficient, which can be calibrated to determine grain size.
Another significant patent is the "Method and system for high resolution ultrasonic imaging of small defects." This invention utilizes the Synthetic Aperture Focusing Technique (SAFT) to enhance the detection and imaging of small defects within objects. The improved version of frequency-domain SAFT (F-SAFT) described in this patent includes temporal deconvolution of waveform data, control of the aperture, and spatial interpolation of subsurface images. These enhancements improve both the signal-to-noise ratio and the overall resolution of ultrasonic imaging.
Career Highlights
Throughout his career, Daniel Levesque has worked with esteemed organizations such as the National Research Council of Canada and the American Iron and Steel Institute. His work has significantly advanced the field of ultrasonics, particularly in non-destructive testing and material evaluation.
Collaborations
Levesque has collaborated with notable colleagues, including Andre Moreau and Jean-Pierre Monchalin, contributing to various innovative projects in the field.
Conclusion
Daniel Levesque's contributions to ultrasonics through his patents and career achievements highlight his role as a leading inventor in the field. His innovative methods continue to influence material evaluation and imaging techniques.
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