ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,455,442, issued on Oct. 28, was assigned to NTT Inc. (Tokyo).
"Wavelength variable optical filter" was invented by Yurina Tanaka (Tokyo), Yuichi Akage (Tokyo), Masahiro Ueno (Tokyo), Takashi Sakamoto (Tokyo), Sohan Kawamura (Tokyo) and Soichi Oka (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A first component having a plate shape includes a first incident surface and a first emission surface disposed on the opposite side of the first incident surface. The first component is made of light transmissive material having an electrostrictive effect. The first component further includes a first transparent electrode formed on the first incident surface...