ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,474,237, issued on Nov. 18, was assigned to HOCHIKI Corp. (Tokyo).
"Fire detection apparatus" was invented by Keisuke Washizu (Tokyo) and Hiroki Masuzawa (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A sensor 100 is a fire detection apparatus attached to a ceiling surface 900, and includes an inflow space 400 provided inside the sensor 100, a detection space 300 for detecting a detection target, the detection space 300 being provided at a position on a ceiling surface 900 side of the inflow space 400 on the inside of the sensor 100, an inner cover 2 for housing the detection space 300, the inner cover 2 being capable of allowing gas containing t...