ALEXANDRIA, Va., May 5 -- United States Patent no. 12,619,015, issued on May 5, was assigned to NICHIA Corp. (Anan, Japan).

"Method of manufacturing optical member" was invented by Takaaki Tada (Itano-gun, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of manufacturing an optical member includes forming a first layer on a light transmissive substrate by atomic layer deposition, converting a surface layer of the first layer into a boehmite layer, and forming a second layer by atomic layer deposition so as to cover the boehmite layer. The first layer includes aluminum oxide and has a first thickness. The second layer has a second thickness less than the first thickness."

The patent was filed on...