ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,549,469, issued on Feb. 10, was assigned to NEC Corp. (Tokyo).

"Logical network construction system, gateway device, controller, and logical network construction method" was invented by Shinya Kuramoto (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An object is to provide a logical network construction system.A logical network construction system is provided with first and second gateway devices and a controller which communicate with each other via a network, a source device, a destination device, and a storage unit in which an entire device connection list and an entire route definition list are stored. A controller constructs a logical network...