ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,836, issued on May 27, was assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT Co. LTD. (Osaka, Japan).

"Safety switch, and switch system" was invented by Koji Ito (Gifu, Japan) and Tomohiro Mori (Aichi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A safety switch includes a detection unit, an output unit, an input unit; and a display unit. The detection unit is configured to detect presence or absence of abnormality. The output unit is configured to output an abnormality detection signal indicating a detection result of the presence or absence of the abnormality. The input unit is configured to input a display control signal. The display...