US Patent Issued to AGC on May 19 for "Optical filter" (Japanese Inventors)

ALEXANDRIA, Va., May 19 -- United States Patent no. 12,631,809, issued on May 19, was assigned to AGC Inc. (Tokyo).

"Optical filter" was invented by Motoshi Nakayama (Tokyo), Takashi Nagata (Shizuoka, Japan), Kazuhiko Shiono (Fukushima, Japan) and Takeru Wakabayashi (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical filter, includes: a near infrared ray absorbing glass, dielectric multilayer films laid on or above both major surfaces of the near infrared ray absorbing glass, and an absorption layer laid on or above a surface of at least one of the dielectric multilayer films and having a maximum absorption wavelength in a near infrared light region, in which the optical filter satisfies all of ...