US Patent Issued to 1FINITY on Nov. 3 for "Optical transmission device" (Japanese Inventor)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,785,811, issued on Nov. 3, was assigned to 1FINITY Inc. (Kawasaki, Japan).

"Optical transmission device" was invented by Tomoyuki Akiyama (Yokohama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical transmission device includes an optical circuit in which circuit groups are connected in multiple stages in a tree form, each of the circuit groups including three circuits of a two-input two-output type each having periodic transmission characteristics, the three circuits being connected in multiple stages in a tree form so that one of subsequent ports of a first circuit at a preceding stage of the three circuits is connected to one of precedin...