ALEXANDRIA, Va., April 21 -- United States Patent no. 12,610,666, issued on April 21, was assigned to NIPPON ELECTRIC GLASS Co. LTD. (Shiga, Japan).

"Glass for use in wavelength conversion material, wavelength conversion material, wavelength conversion member, and light-emitting device" was invented by Takahiro Matano (Otsu, Japan), Tamio Ando (Otsu, Japan) and Yoshihisa Takayama (Otsu, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a glass that is used in a phosphor-containing wavelength conversion material and from which can be produced a wavelength conversion member less degraded in characteristics of a phosphor owing to firing during production of the wavelength conversion member and ha...