ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,439,281, issued on Oct. 7, was assigned to Mitsubishi Electric Corp. (Tokyo).
"Apparatus maintenance management system" was invented by Shun Kato (Tokyo), Hirotoshi Yano (Tokyo) and Masanori Nakata (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus maintenance management system includes a plurality of apparatuses each configured to transmit information on its own operation and information on the presence or absence of an abnormality, and a remote processor configured to acquire and store the information of each of the apparatuses. The remote processor is configured to restrict communication by using authentication keys of at least one typ...