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Lexmark International Assigned New Inkjet Patent
Lexmark International Assigned Patent for Anti-reflective Coatings for Micro-fluid Applications
ALEXANDRIA, Va., March 16 2013 — Lexmark International, Lexington, Ky., has been assigned a patent (8,394,714) developed by Byron V. Bell, Paris, Ky., for "anti-reflective coatings for micro-fluid applications."
The abstract of the patent published by the U.S. Patent and Trademark Office states: "Micro-fluid ejection heads have anti-reflective coatings. The coatings destructively interfere with light at wavelengths of interest during subsequent photo imaging processing, such as during nozzle plate imaging. Methods include determining wavelengths of photoresists. Layers are applied to the substrate and anodized. They form an oxidized layer of a predetermined thickness and reflectivity that essentially eliminates stray and scattered light during production of nozzle plates. Process conditions include voltages, biasing, lengths of time, and bathing solutions, to name a few. Tantalum and titanium oxides define further embodiments as do layer thicknesses and light wavelengths."
The patent application was filed on July 30, 2010 (12/847,494). The full-text of the patent can be found at http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&co1=AND&d=PTXT&s1=8,394,714&OS=8,394,714&RS=8,394,714
Written by Satyaban Rath; edited by Hemanta Panigrahi.
SR0316HP0316-854726
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