ALEXANDRIA, Va., May 5 -- United States Patent no. 12,621,185, issued on May 5, was assigned to FUJITSU Ltd. (Kawasaki, Japan).

"Transmission method and transmission apparatus in ring network" was invented by Yuji Tochio (Kawasaki, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "According to the transmission method, labels to be used at the failure occurrence are previously and individually set to links in respective directions among all nodes on the one directional link connecting between adjacent nodes basis, and when a failure occurs, a failure notifying message is sent out onto a same directional ring from a termination node of a failed block, to be sequentially transferred to each downstream node, ...