ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,468,078, issued on Nov. 11, was assigned to AGC Inc. (Tokyo) and Optical Coatings Japan (Tokyo).
"Optical filter" was invented by Yosuke Sugihara (Tokyo), Yasuyuki Takimoto (Tokyo), Takahiro Mashimo (Tokyo), Atsushi Koyanagi (Tokyo), Naoto Tatsuoka (Tokyo), Masaaki Miyake (Tokyo) and Hideaki Takahoshi (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical filter includes a substrate and a dielectric multilayer film laid as an outermost layer on at least one major surface of the substrate. The dielectric multilayer film includes a low-refractive index film and a high-refractive index film provided alternately. At least one film selected from th...