ALEXANDRIA, Va., April 21 -- United States Patent no. 12,605,315, issued on April 21, was assigned to KAO Corp. (Tokyo).
"External skin preparation" was invented by Takashi Fukui (Kawasaki, Japan) and Noriko Tejima (Sumida-ku, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to [1] an external skin preparation containing a tabular metal oxide (A) having a thickness of 30 to 360 nm and an aspect ratio of 50 to 300, and a UV absorbent (B) in a ratio [(A)/(B)] by mass of 0.1 to 5; [2] an external skin reparation containing the tabular metal oxide (A), a UV scattering agent (C) and a nonvolatile oil (D) in a ratio [(A)/(C)] by mass of 0.1 to 18; and [3] a method for protecting s...