ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,480,050, issued on Nov. 25, was assigned to FUJIFILM Corp. (Tokyo).
"Cholesteric liquid crystal film" was invented by Takahiro Hayashi (Kanagawa, Japan), Satoshi Kuniyasu (Kanagawa, Japan) and Mitsuyoshi Ichihashi (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides a cholesteric liquid crystal film including a first cholesteric liquid crystal layer having a stripe pattern in which dark portions and bright portions, which are observed with a microscope, are alternately arranged and a second cholesteric liquid crystal layer which is disposed in contact with the first cholesteric liquid crystal layer and has a st...