ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,482,794, issued on Nov. 25, was assigned to SEOUL SEMICONDUCTOR Co. LTD. (Ansan-si, South Korea).
"White light source system" was invented by Masahiko Yamakawa (Yokohama, Japan), Noriaki Yagi (Yokohama, Japan) and Kumpei Kobayashi (Yokohama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A light emitting device including a substrate, a first light emitter to emit light having a first color temperature, and a second light emitter to emit light having a second color temperature, in which the first light emitter has a first converter including first phosphors and a first resin, each first phosphor having different half-value widths, the second light ...