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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12607552 B1

PDFFull Text
Date of Patent:
Apr. 21, 2026

Filed:

Feb. 23, 2022

Laser shock method

Applicants:

Safran, Paris, FR;

Centre National DE LA Recherche Scientifique, Paris, FR;

Sorbonne Universite, Paris, FR;

Ecole Nationale Superieure D'arts ET Metiers (Ensam), Paris, FR;

Conservatoire National Des Arts ET Metiers, Paris, FR;

Inventors:

Mathieu Loïc Ducousso, Moissy-Cramayel, FR;

Edouardo Cuenca, Moissy-Cramayel, FR;

François Coulouvrat, Paris, FR;

Laurent Berthe, Paris, FR;

Assignees:

SAFRAN, Paris, FR;

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris, FR;

SORBONNE UNIVERSITE, Paris, FR;

ECOLE NATIONALE SUPERIEURE D'ARTS ET METIERS (ENSAM), Paris, FR;

CONSERVATOIRE NATIONAL DES ARTS ET METIERS, Paris, FR;

Attorney:

Cozen O'Connor

Primary Examiner:

Tarun Sinha

Int. Cl.
CPC ...
G01N 21/17 (2006.01);
U.S. Cl.
CPC ...
G01N 21/1702 (2013.01); G01N 2021/1706 (2013.01);
Abstract

A method for focusing acoustic waves on an interface between two layers of a multilayer structure includes providing laser means able to emit a laser beam toward an exterior surface of the multilayer structure to produce a longitudinal wave from the centre of a laser-beam spot projected onto the exterior surface and a transverse wave from the periphery of said spot, determining the distance between said interface and the exterior surface, determining one or more propagation velocities of each of the longitudinal wave and the transverse wave in the one or more layers passed through by said waves to reach said interface, and determining a radius of the laser-beam spot depending on the one or more propagation velocities and on said distance so that the time taken by the longitudinal wave to reach said interface is equal to three times the time taken by the transverse wave to reach said interface.

Find Patent Forward Citations

Ducousso, Mathieu Loïc. (2026). Laser shock method (U.S. Patent No. 12607552). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12607552

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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