ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,214,996, issued on Feb. 4, was assigned to KOBELCO CONSTRUCTION MACHINERY Co. LTD. (Hiroshima, Japan).
"Notification system" was invented by Yusuke Fujiwara (Hiroshima, Japan), Seiji Saiki (Hiroshima, Japan) and Natsuki Yumoto (Hiroshima, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A notification system includes: a notifier which notifies an operator of a state of a lifting magnet; a sensor which detects at least one of a voltage, an electric current, and an electric power supplied for exciting the lifting magnet; a determination part which determines, based on detection data from the sensor, whether an attraction quantity of the lifting magnet ...