ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,419,814, issued on Sept. 23, was assigned to Shiseido Co. Ltd. (Tokyo).
"Emulsion cosmetic" was invented by Kei Ujimoto (Tokyo), Kouichi Nagai (Tokyo), Marianne Ayaka Touati (Tokyo), Yuko Nagare (Tokyo) and Satoshi Yamaki (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is an emulsion cosmetic having the innovative, unprecedented property in which the ultraviolet protection effects do not decrease, and conversely increase, due to heat applied in a usage environment. The present invention pertains to an emulsion cosmetic comprising (A) an ultraviolet protectant, (B) a polyhydric alcohol having an IOB value of 5.0 or lower, and (C) an ester...