US Patent Issued to AGC on July 29 for "Optical filter" (Japanese Inventors)

ALEXANDRIA, Va., July 30 -- United States Patent no. 12,372,698, issued on July 29, was assigned to AGC Inc. (Tokyo).

"Optical filter" was invented by Kazuhiko Shiono (Fukushima, Japan), Takuro Shimada (Fukushima, Japan), Yuichiro Orita (Fukushima, Japan), Kiyokazu Endo (Fukushima, Japan), Takahiro Sakagami (Shizuoka, Japan), Takashi Nagata (Shizuoka, Japan) and Katsushi Kamijyo (Shizuoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical filter includes a first dielectric multilayer film, a resin film, a phosphate glass, and a second dielectric multilayer film. The second dielectric multilayer film includes at least one H2 layer satisfying a refractive index of 1.8 or more and 2.5 or less and ...