ALEXANDRIA, Va., July 30 -- United States Patent no. RE50,510, issued on July 29, was assigned to Sony Group Corp. (Tokyo).
"Optical device" was invented by Terukazu Naruse (Kanagawa, Japan) and Takahiro Arakida (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical device includes: a multilayer structure substrate on which plural insulating layers are stacked and a wiring pattern is formed between layers; a recessed part for exposing the wiring pattern between the layers by cutting off a part of the multilayer structure substrate; an optical element mounted within the recessed part in electric conduction to the wiring pattern exposed by the recessed part; and an optical waveguide member ...