US Patent Issued to FUJIFILM on May 5 for "Wavelength selective absorption filter and display device" (Japanese Inventors)

ALEXANDRIA, Va., May 5 -- United States Patent no. 12,619,006, issued on May 5, was assigned to FUJIFILM Corp. (Tokyo).

"Wavelength selective absorption filter and display device" was invented by Nobutaka Fukagawa (Kanagawa, Japan) and Hiroki Kuwahara (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A wavelength selective absorption filter contains a resin, a coloring agent, and a compound having at least one polar group of a carboxylic acid ester bond, a carboxylic acid amide bond, a sulfonic acid amide bond, a urethane bond, or a sulfonyl bond and a MWless than equal to1,000 where dye includes at least one of dye A having a main absorption wavelength range at a wavelength of 390 to 440 nm an...