US Patent Issued to NIPPON ELECTRIC GLASS on Jan. 27 for "Wavelength conversion member and light emitting device using same" (Japanese Inventors)

ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,534,398, issued on Jan. 27, was assigned to NIPPON ELECTRIC GLASS Co. LTD. (Shiga, Japan).

"Wavelength conversion member and light emitting device using same" was invented by Tadahito Furuyama (Otsu, Japan) and Shotaro Fukumoto (Otsu, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a wavelength conversion member which is made of a phosphor powder dispersed in a glass matrix and has an excellent luminous efficiency. A wavelength conversion member is comprising: a phosphor powder dispersed in a glass matrix, wherein the glass matrix has a refractive index (nd) of 1.6 or more and a liquidus temperature of 1070deg C. or below."

The patent ...