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Imra files patent suit against Coherent in Germany

Photonics Spectra
Jul 2013
IMRA America Inc. of Ann Arbor, Mich., has filed a patent infringement suit in Germany against two Germany-based subsidiaries of laser maker Coherent. The patent relates to using picosecond and femtosecond lasers to micromachine parts used for microelectronics applications. The lawsuit, filed at the District Court of Düsseldorf, Germany, asserts that certain laser products marketed by Coherent’s German subsidiaries, Coherent Kaiserslautern GmbH (formerly Lumera Laser GmbH) and Coherent (Deutschland) GmbH, infringe the German part of Imra’s European Patent 0 754 103 B1, a “method for controlling configuration of laser-induced breakdown and ablation.”

femtosecond laser
A type of ultrafast laser that creates a minimal amount of heat-affected zones by having a pulse duration below the picosecond level, making the technology ideal for micromachining, medical device fabrication, scientific research, eye surgery and bioimaging.
AmericasBusinessCoherent DeutschlandCoherent Inc.Coherent KaiserslauternEcole Polytechnique Haut CollègeEuropefemtosecond laserfiber opticsGerard MourouGermanyImra AmericaIPG Photonicslaserslight speedLumera LaserMichiganmicroelectronicsmicromachiningpatentpatent fightpatent infringementpatent lawsuitpicosecond laserTakashi OmitsuUniversity of Michigan

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