ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,430,997, issued on Sept. 30, was assigned to HOCHIKI Corp. (Tokyo).

"Disaster prevention apparatus" was invented by Keisuke Washizu (Tokyo) and Manabu Dohi (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A detector 100 includes: an outer cover 11; and an indicator that outputs at least information about a test of a disaster prevention apparatus by emitting light, and that is provided in the outer cover 11, wherein when at least a part of the outer cover 11 is covered with a test apparatus in order to perform the test of the detector 100, at least a part of an indication surface of the indicator is exposed to an outside of the test apparatus and t...