US Patent Issued to HOCHIKI on Aug. 5 for "Fire detection device" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,379,313, issued on Aug. 5, was assigned to HOCHIKI Corp. (Tokyo).

"Fire detection device" was invented by Tomohiko Shimadzu (Tokyo), Keisuke Washizu (Tokyo), Manabu Dohi (Tokyo), Yasuharu Fujiwara (Tokyo) and Hideki Takano (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An occurrence space 32A which is provided in a light shielding space 3A shielded from light from an outside and into which a detection target flows, a first light emitting unit 61A and a second light emitting unit that emit detection light along a first light emitting-side optical axis 611A and a second light emitting-side optical axis toward an occurrence space 32A, a light receivi...